TY  - JOUR
AU  - Ristić, Mirjana
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Tijana
AU  - Jovanović, Vojislav
AU  - Kostić, Marija
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12482
AB  - In this research, a composite based on montmorillonite (K10) modified with HDTMABr was used. The characterization of the pure K10, NaMMT and OMMT was performed using XRD, FTIR-ATR, SEM, TG, DTG, and DTA. Ion exchange capacity (CEC) and specific surface area (SSA) were also determined. The sulfite method was used to determine free and liberated formaldehyde (FA) from synthesized urea-formaldehyde/montmorillonite (UF/ MMT) composites. This research aims to demonstrate the bifunctionality of OMMT and that it can be used both for the capture of FA from the synthesized cross-linked UF resin and for the adsorption of the anionic dye Acid Red 183 (AR183) from aquatic medium. SEM analysis showed that there are changes in the morphology of the OMMT and the formation of a hollow network, which affects the absorption capacity of the clay. The calculated values of free and liberated FA in the UF/OMMT composites are drastically reduced and amount to 0.12% and 0.96%, respectively, compared to the composites with K10 (0.6% and 2.04%, respectively). Also, very promising results were obtained of the adsorption of AR183 dyes from the aquatic medium using OMMT. The results show that OMMT (0.5 g OMMT/50 cm3 aqueous dye solution, c=20 mgdm− 3 ) managed to remove 85.95% of AR183 dye (pH dye=7). The adsorption mechanism of AR183 on OMMT follows the Freundlich isotherm and proceeds according to the pseudo-first-order kinetic model. Overall, the findings of this work indicate that the use of the obtained OMMT has great potential in removing pollutants from two totally different systems.
T2  - Journal of Environmental Chemical Engineering
T1  - Organically modified montmorillonite as an environmental adsorbent of pollutants: Formaldehyde from urea-formaldehyde resin and Acid Red 183 dye from the aqueous solution
VL  - 12
IS  - 1
SP  - 111828
DO  - 10.1016/j.jece.2023.111828
ER  - 

@article{
author = "Ristić, Mirjana and Samaržija-Jovanović, Suzana and Jovanović, Tijana and Jovanović, Vojislav and Kostić, Marija and Marković, Gordana and Marinović-Cincović, Milena",
year = "2024",
abstract = "In this research, a composite based on montmorillonite (K10) modified with HDTMABr was used. The characterization of the pure K10, NaMMT and OMMT was performed using XRD, FTIR-ATR, SEM, TG, DTG, and DTA. Ion exchange capacity (CEC) and specific surface area (SSA) were also determined. The sulfite method was used to determine free and liberated formaldehyde (FA) from synthesized urea-formaldehyde/montmorillonite (UF/ MMT) composites. This research aims to demonstrate the bifunctionality of OMMT and that it can be used both for the capture of FA from the synthesized cross-linked UF resin and for the adsorption of the anionic dye Acid Red 183 (AR183) from aquatic medium. SEM analysis showed that there are changes in the morphology of the OMMT and the formation of a hollow network, which affects the absorption capacity of the clay. The calculated values of free and liberated FA in the UF/OMMT composites are drastically reduced and amount to 0.12% and 0.96%, respectively, compared to the composites with K10 (0.6% and 2.04%, respectively). Also, very promising results were obtained of the adsorption of AR183 dyes from the aquatic medium using OMMT. The results show that OMMT (0.5 g OMMT/50 cm3 aqueous dye solution, c=20 mgdm− 3 ) managed to remove 85.95% of AR183 dye (pH dye=7). The adsorption mechanism of AR183 on OMMT follows the Freundlich isotherm and proceeds according to the pseudo-first-order kinetic model. Overall, the findings of this work indicate that the use of the obtained OMMT has great potential in removing pollutants from two totally different systems.",
journal = "Journal of Environmental Chemical Engineering",
title = "Organically modified montmorillonite as an environmental adsorbent of pollutants: Formaldehyde from urea-formaldehyde resin and Acid Red 183 dye from the aqueous solution",
volume = "12",
number = "1",
pages = "111828",
doi = "10.1016/j.jece.2023.111828"
}

Ristić, M., Samaržija-Jovanović, S., Jovanović, T., Jovanović, V., Kostić, M., Marković, G.,& Marinović-Cincović, M.. (2024). Organically modified montmorillonite as an environmental adsorbent of pollutants: Formaldehyde from urea-formaldehyde resin and Acid Red 183 dye from the aqueous solution. in Journal of Environmental Chemical Engineering, 12(1), 111828.
https://doi.org/10.1016/j.jece.2023.111828

Ristić M, Samaržija-Jovanović S, Jovanović T, Jovanović V, Kostić M, Marković G, Marinović-Cincović M. Organically modified montmorillonite as an environmental adsorbent of pollutants: Formaldehyde from urea-formaldehyde resin and Acid Red 183 dye from the aqueous solution. in Journal of Environmental Chemical Engineering. 2024;12(1):111828.
doi:10.1016/j.jece.2023.111828 .

Ristić, Mirjana, Samaržija-Jovanović, Suzana, Jovanović, Tijana, Jovanović, Vojislav, Kostić, Marija, Marković, Gordana, Marinović-Cincović, Milena, "Organically modified montmorillonite as an environmental adsorbent of pollutants: Formaldehyde from urea-formaldehyde resin and Acid Red 183 dye from the aqueous solution" in Journal of Environmental Chemical Engineering, 12, no. 1 (2024):111828,
https://doi.org/10.1016/j.jece.2023.111828 . .

TY  - CONF
AU  - Ristić, Mirjana
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Kostić, Marija
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Kojić, Marija
AU  - Marinović-Cincović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12225
PB  - Niš : RAD Centre
C3  - RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - Functional materials based on renewable raw materials: hydrochar and chitosan as formaldehyde scavengers in urea-formaldehide composites
SP  - 80
EP  - 80
DO  - 10.21175/rad.abstr.book.2023.19.1
ER  - 

@conference{
author = "Ristić, Mirjana and Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Kostić, Marija and Jovanović, Tijana and Marković, Gordana and Kojić, Marija and Marinović-Cincović, Milena",
year = "2023",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "Functional materials based on renewable raw materials: hydrochar and chitosan as formaldehyde scavengers in urea-formaldehide composites",
pages = "80-80",
doi = "10.21175/rad.abstr.book.2023.19.1"
}

Ristić, M., Samaržija-Jovanović, S., Jovanović, V., Kostić, M., Jovanović, T., Marković, G., Kojić, M.,& Marinović-Cincović, M.. (2023). Functional materials based on renewable raw materials: hydrochar and chitosan as formaldehyde scavengers in urea-formaldehide composites. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 80-80.
https://doi.org/10.21175/rad.abstr.book.2023.19.1

Ristić M, Samaržija-Jovanović S, Jovanović V, Kostić M, Jovanović T, Marković G, Kojić M, Marinović-Cincović M. Functional materials based on renewable raw materials: hydrochar and chitosan as formaldehyde scavengers in urea-formaldehide composites. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:80-80.
doi:10.21175/rad.abstr.book.2023.19.1 .

Ristić, Mirjana, Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Kostić, Marija, Jovanović, Tijana, Marković, Gordana, Kojić, Marija, Marinović-Cincović, Milena, "Functional materials based on renewable raw materials: hydrochar and chitosan as formaldehyde scavengers in urea-formaldehide composites" in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):80-80,
https://doi.org/10.21175/rad.abstr.book.2023.19.1 . .

TY  - JOUR
AU  - Ristić, Mirjana
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Kostić, Marija
AU  - Erceg, Tamara
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11101
AB  - In this work, betaine (trimethyl glycine) and tannin (complex biomolecules of polyphenolic nature) were used as bio-fillers. Urea-formaldehyde (UF) resin with a molar ratio of formaldehyde versus urea (FA/U) of 0.8 was synthesized in situ with tannin and betaine as bio-fillers, to obtain UF resin with reduced free FA content and increased hydrolytic and thermal stability by the principles of sustainability. The samples TUF (with tannin) and BUF (with betaine) were characterized by using X-ray diffraction analysis (XRD), non-isothermal thermogravimetric analysis (TGA), and differential thermal analysis (DTA), supported by data from Fourier Transform Infrared spectroscopy (FTIR) and Scanning electron microscopy (SEM). The percentage of free FA in modified BUF resin is 0.1%, while the percentage of free FA in tannin-modified resin is 0.8%. The hydrolytic stability of the modified UF resins was determined by measuring the concentration of liberated FA in the modified UF resins, after acid hydrolysis. The modified BUF resin is hydrolytically more stable because the content of released FA is 3.6% compared to the modified TUF resin, where it was 7.4%. Based on the value for T5%, the more thermally stable resin is the modified TUF resin (T5% = 123.1°C), while the value of the T5% for the BUF resin is 83.1°C. This work showed how UF bio-composite with reduced free FA content and increased hydrolytic and thermal stability can be obtained using tannin and betaine as bio-fillers.
T2  - Journal of Vinyl and Additive Technology
T1  - Hydrolytic and thermal stability of urea-formaldehyde resins based on tannin and betaine bio-fillers
VL  - 29
IS  - 6
SP  - 1082
EP  - 1092
DO  - 10.1002/vnl.22024
ER  - 

@article{
author = "Ristić, Mirjana and Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Kostić, Marija and Erceg, Tamara and Jovanović, Tijana and Marković, Gordana and Marinović-Cincović, Milena",
year = "2023",
abstract = "In this work, betaine (trimethyl glycine) and tannin (complex biomolecules of polyphenolic nature) were used as bio-fillers. Urea-formaldehyde (UF) resin with a molar ratio of formaldehyde versus urea (FA/U) of 0.8 was synthesized in situ with tannin and betaine as bio-fillers, to obtain UF resin with reduced free FA content and increased hydrolytic and thermal stability by the principles of sustainability. The samples TUF (with tannin) and BUF (with betaine) were characterized by using X-ray diffraction analysis (XRD), non-isothermal thermogravimetric analysis (TGA), and differential thermal analysis (DTA), supported by data from Fourier Transform Infrared spectroscopy (FTIR) and Scanning electron microscopy (SEM). The percentage of free FA in modified BUF resin is 0.1%, while the percentage of free FA in tannin-modified resin is 0.8%. The hydrolytic stability of the modified UF resins was determined by measuring the concentration of liberated FA in the modified UF resins, after acid hydrolysis. The modified BUF resin is hydrolytically more stable because the content of released FA is 3.6% compared to the modified TUF resin, where it was 7.4%. Based on the value for T5%, the more thermally stable resin is the modified TUF resin (T5% = 123.1°C), while the value of the T5% for the BUF resin is 83.1°C. This work showed how UF bio-composite with reduced free FA content and increased hydrolytic and thermal stability can be obtained using tannin and betaine as bio-fillers.",
journal = "Journal of Vinyl and Additive Technology",
title = "Hydrolytic and thermal stability of urea-formaldehyde resins based on tannin and betaine bio-fillers",
volume = "29",
number = "6",
pages = "1082-1092",
doi = "10.1002/vnl.22024"
}

Ristić, M., Samaržija-Jovanović, S., Jovanović, V., Kostić, M., Erceg, T., Jovanović, T., Marković, G.,& Marinović-Cincović, M.. (2023). Hydrolytic and thermal stability of urea-formaldehyde resins based on tannin and betaine bio-fillers. in Journal of Vinyl and Additive Technology, 29(6), 1082-1092.
https://doi.org/10.1002/vnl.22024

Ristić M, Samaržija-Jovanović S, Jovanović V, Kostić M, Erceg T, Jovanović T, Marković G, Marinović-Cincović M. Hydrolytic and thermal stability of urea-formaldehyde resins based on tannin and betaine bio-fillers. in Journal of Vinyl and Additive Technology. 2023;29(6):1082-1092.
doi:10.1002/vnl.22024 .

Ristić, Mirjana, Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Kostić, Marija, Erceg, Tamara, Jovanović, Tijana, Marković, Gordana, Marinović-Cincović, Milena, "Hydrolytic and thermal stability of urea-formaldehyde resins based on tannin and betaine bio-fillers" in Journal of Vinyl and Additive Technology, 29, no. 6 (2023):1082-1092,
https://doi.org/10.1002/vnl.22024 . .

TY  - JOUR
AU  - Kostić, Marija
AU  - Samaržija-Jovanović, Suzana
AU  - Ristić, Mirjana
AU  - Jovanović, Tijana
AU  - Jovanović, Vojislav
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10923
AB  - In this paper, the synthesis of modified urea-formaldehyde (UF) composites with differently activated montmorillonite KSF (UF/KSF) was performed. Two types of montmorillonite (MMT) KSF were used: sample activated with sulfuric acid-KSF(H2SO4) and sample activated with acid and stirring-KSF(H2SO4+stirrer). In order to examine the effect of KSF activation mode on the thermal and hydrolytic stability of UF resins, thermogravimetric analysis (TGA) was performed, as well as A determination of the amount of liberated formaldehyde (FA) after acid hydrolysis. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis were used to characterize the samples of modified UF/KSF composites and differently activated KSF. Activation of KSF led to a decrease in its specific surface area (SSA) and to an increase in cation exchange capacity (CEC). SEM analysis showed that in the KSF(H2SO4+stirrer) sample, the layered microstructure was disrupted. Free formaldehyde was not detected in the sample of UF resin with KSF(H2SO4), and in the sample with KSF(H2SO4+stirrer) it was 0.06%. The UF/KSF(H2SO4) composite showed higher hydrolytic stability (3.9%) compared to UF/KSF(H2SO4+stirrer) (4.62%), but lower compared to the UF/KSF(inactive) (1.23%). TG analysis showed that the KSF(H2SO4) sample had better thermal stability than the KSF(H2SO4+stirrer) sample, but this did not contribute to the better thermal stability of UF/KSF(H2SO4) compared to UF/KSF(H2SO4+stirrer), both samples had a T5% value of 112 °C.
T2  - International Journal of Adhesion and Adhesives
T1  - Effect of montmorillonite activation method on formaldehyde content in urea-formaldehyde composites
VL  - 124
SP  - 103390
DO  - 10.1016/j.ijadhadh.2023.103390
ER  - 

@article{
author = "Kostić, Marija and Samaržija-Jovanović, Suzana and Ristić, Mirjana and Jovanović, Tijana and Jovanović, Vojislav and Marković, Gordana and Marinović-Cincović, Milena",
year = "2023",
abstract = "In this paper, the synthesis of modified urea-formaldehyde (UF) composites with differently activated montmorillonite KSF (UF/KSF) was performed. Two types of montmorillonite (MMT) KSF were used: sample activated with sulfuric acid-KSF(H2SO4) and sample activated with acid and stirring-KSF(H2SO4+stirrer). In order to examine the effect of KSF activation mode on the thermal and hydrolytic stability of UF resins, thermogravimetric analysis (TGA) was performed, as well as A determination of the amount of liberated formaldehyde (FA) after acid hydrolysis. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis were used to characterize the samples of modified UF/KSF composites and differently activated KSF. Activation of KSF led to a decrease in its specific surface area (SSA) and to an increase in cation exchange capacity (CEC). SEM analysis showed that in the KSF(H2SO4+stirrer) sample, the layered microstructure was disrupted. Free formaldehyde was not detected in the sample of UF resin with KSF(H2SO4), and in the sample with KSF(H2SO4+stirrer) it was 0.06%. The UF/KSF(H2SO4) composite showed higher hydrolytic stability (3.9%) compared to UF/KSF(H2SO4+stirrer) (4.62%), but lower compared to the UF/KSF(inactive) (1.23%). TG analysis showed that the KSF(H2SO4) sample had better thermal stability than the KSF(H2SO4+stirrer) sample, but this did not contribute to the better thermal stability of UF/KSF(H2SO4) compared to UF/KSF(H2SO4+stirrer), both samples had a T5% value of 112 °C.",
journal = "International Journal of Adhesion and Adhesives",
title = "Effect of montmorillonite activation method on formaldehyde content in urea-formaldehyde composites",
volume = "124",
pages = "103390",
doi = "10.1016/j.ijadhadh.2023.103390"
}

Kostić, M., Samaržija-Jovanović, S., Ristić, M., Jovanović, T., Jovanović, V., Marković, G.,& Marinović-Cincović, M.. (2023). Effect of montmorillonite activation method on formaldehyde content in urea-formaldehyde composites. in International Journal of Adhesion and Adhesives, 124, 103390.
https://doi.org/10.1016/j.ijadhadh.2023.103390

Kostić M, Samaržija-Jovanović S, Ristić M, Jovanović T, Jovanović V, Marković G, Marinović-Cincović M. Effect of montmorillonite activation method on formaldehyde content in urea-formaldehyde composites. in International Journal of Adhesion and Adhesives. 2023;124:103390.
doi:10.1016/j.ijadhadh.2023.103390 .

Kostić, Marija, Samaržija-Jovanović, Suzana, Ristić, Mirjana, Jovanović, Tijana, Jovanović, Vojislav, Marković, Gordana, Marinović-Cincović, Milena, "Effect of montmorillonite activation method on formaldehyde content in urea-formaldehyde composites" in International Journal of Adhesion and Adhesives, 124 (2023):103390,
https://doi.org/10.1016/j.ijadhadh.2023.103390 . .

TY  - JOUR
AU  - Ristić, Mirjana
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Kostić, Marija
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Kojić, Marija
AU  - Vujčić, Ivica
AU  - Marinović-Cincović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11081
AB  - To provide new insight into the field of urea-formaldehyde (UF) adhesives science, in this work, for the first time, UF resin was modified with hydrochar of spent mushroom substrate (HCUF) and chitosan (CHUF) to investigate the effect of these bio-fillers on the hydrolytic and thermal stability of in situ prepared UF resins. The characterization of the modified UF biocomposites was performed using X-ray diffraction analysis (XRD), Fourier transforms infrared spectroscopy (FTIR), non-isothermal thermogravimetric analysis (TG), differential thermal gravimetry (DTG), and differential thermal analysis (DTA). Scanning electron micrographs (SEM) of the CHUF and HCUF biocomposites show a spherical structure that differs from each other because the surface of the CHUF biocomposite has pronounced pores that form a network structure. With its hydroxyl and amino groups, chitosan bonding to UF resin through hydrogen bonds, which is confirmed by FTIR analysis. The content of free FA in CHUF biocomposite is 0.06%, while that of HCUF is higher and amounts to 0.48%. The content of released FA in both modified UF biocomposites was similar (2.5% and 2.8% for CHUF and HCUF, respectively). The hydrolytic stability of CHUF is slightly higher compared to the HCUF biocomposite. Thermal analysis shows that the CHUF is thermally more stable because it starts to decompose at a slightly higher temperature than the HCUF biocomposite.
T2  - Journal of Vinyl and Additive Technology
T1  - The comparative study of biocomposites based on hydrochar and chitosan-modified urea-formaldehyde resins
IS  - Early View
DO  - 10.1002/vnl.22014
ER  - 

@article{
author = "Ristić, Mirjana and Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Kostić, Marija and Jovanović, Tijana and Marković, Gordana and Kojić, Marija and Vujčić, Ivica and Marinović-Cincović, Milena",
year = "2023",
abstract = "To provide new insight into the field of urea-formaldehyde (UF) adhesives science, in this work, for the first time, UF resin was modified with hydrochar of spent mushroom substrate (HCUF) and chitosan (CHUF) to investigate the effect of these bio-fillers on the hydrolytic and thermal stability of in situ prepared UF resins. The characterization of the modified UF biocomposites was performed using X-ray diffraction analysis (XRD), Fourier transforms infrared spectroscopy (FTIR), non-isothermal thermogravimetric analysis (TG), differential thermal gravimetry (DTG), and differential thermal analysis (DTA). Scanning electron micrographs (SEM) of the CHUF and HCUF biocomposites show a spherical structure that differs from each other because the surface of the CHUF biocomposite has pronounced pores that form a network structure. With its hydroxyl and amino groups, chitosan bonding to UF resin through hydrogen bonds, which is confirmed by FTIR analysis. The content of free FA in CHUF biocomposite is 0.06%, while that of HCUF is higher and amounts to 0.48%. The content of released FA in both modified UF biocomposites was similar (2.5% and 2.8% for CHUF and HCUF, respectively). The hydrolytic stability of CHUF is slightly higher compared to the HCUF biocomposite. Thermal analysis shows that the CHUF is thermally more stable because it starts to decompose at a slightly higher temperature than the HCUF biocomposite.",
journal = "Journal of Vinyl and Additive Technology",
title = "The comparative study of biocomposites based on hydrochar and chitosan-modified urea-formaldehyde resins",
number = "Early View",
doi = "10.1002/vnl.22014"
}

Ristić, M., Samaržija-Jovanović, S., Jovanović, V., Kostić, M., Jovanović, T., Marković, G., Kojić, M., Vujčić, I.,& Marinović-Cincović, M.. (2023). The comparative study of biocomposites based on hydrochar and chitosan-modified urea-formaldehyde resins. in Journal of Vinyl and Additive Technology(Early View).
https://doi.org/10.1002/vnl.22014

Ristić M, Samaržija-Jovanović S, Jovanović V, Kostić M, Jovanović T, Marković G, Kojić M, Vujčić I, Marinović-Cincović M. The comparative study of biocomposites based on hydrochar and chitosan-modified urea-formaldehyde resins. in Journal of Vinyl and Additive Technology. 2023;(Early View).
doi:10.1002/vnl.22014 .

Ristić, Mirjana, Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Kostić, Marija, Jovanović, Tijana, Marković, Gordana, Kojić, Marija, Vujčić, Ivica, Marinović-Cincović, Milena, "The comparative study of biocomposites based on hydrochar and chitosan-modified urea-formaldehyde resins" in Journal of Vinyl and Additive Technology, no. Early View (2023),
https://doi.org/10.1002/vnl.22014 . .

TY  - JOUR
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Jovanović, Tijana
AU  - Petković, Branka
AU  - Marković, Gordana
AU  - Porobić, Slavica
AU  - Marinović-Cincović, Milena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10164
AB  - In this study, the thermal and hydrolytic properties of composite systems based on the urea–formaldehyde resin (UF) and eco-friendly montmorillonite (K10) as formaldehyde (FA) scavenger were examined. UF resin with molar ratio FA:U = 0.8 was synthesized in situ with inactivated, and activated K10. K10 was activated by sulfuric acid (H2SO4) with and without magnetic stirring. The samples are marked with $${\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4}\right)}$$,$${\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$, $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}$$, and $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$, respectively. X-ray diffraction analysis and non-isothermal thermogravimetric analysis, supported by data from Fourier transform infrared spectroscopy and scanning electron microscopy were used to characterize the samples. Based on the measurement of specific surface area (SSA), the degree of activation was determined. Measurement of the SSA shows that higher values were obtained for modified K10 compared to inactive K10. The amount of free and liberated FA was 0.06% and 4.6% for $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}$$and 0.12% and 4% for $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$. This research showed that the $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}$$composite has a lesser amount of free FA (0.06%) in comparison to the $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$composite (0.12%). The $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$composite has a higher resistance to acidic hydrolysis. The modified $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4}\right)}$$composite is more thermally stable than $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$composite.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Synthesis, characterization, hydrolytic, and thermal stability of urea–formaldehyde composites based on modified montmorillonite K10
DO  - 10.1007/s10973-022-11238-2
ER  - 

@article{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Jovanović, Tijana and Petković, Branka and Marković, Gordana and Porobić, Slavica and Marinović-Cincović, Milena",
year = "2022",
abstract = "In this study, the thermal and hydrolytic properties of composite systems based on the urea–formaldehyde resin (UF) and eco-friendly montmorillonite (K10) as formaldehyde (FA) scavenger were examined. UF resin with molar ratio FA:U = 0.8 was synthesized in situ with inactivated, and activated K10. K10 was activated by sulfuric acid (H2SO4) with and without magnetic stirring. The samples are marked with $${\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4}\right)}$$,$${\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$, $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}$$, and $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$, respectively. X-ray diffraction analysis and non-isothermal thermogravimetric analysis, supported by data from Fourier transform infrared spectroscopy and scanning electron microscopy were used to characterize the samples. Based on the measurement of specific surface area (SSA), the degree of activation was determined. Measurement of the SSA shows that higher values were obtained for modified K10 compared to inactive K10. The amount of free and liberated FA was 0.06% and 4.6% for $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}$$and 0.12% and 4% for $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$. This research showed that the $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}$$composite has a lesser amount of free FA (0.06%) in comparison to the $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$composite (0.12%). The $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$composite has a higher resistance to acidic hydrolysis. The modified $${\mathrm{UF}/\mathrm{K}10}_{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4}\right)}$$composite is more thermally stable than $${\mathrm{UF}/\mathrm{K}10}_{{\left({\mathrm{H}}_{2}{\mathrm{SO}}_{4 }\right)}_{\mathrm{ST}}}$$composite.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Synthesis, characterization, hydrolytic, and thermal stability of urea–formaldehyde composites based on modified montmorillonite K10",
doi = "10.1007/s10973-022-11238-2"
}

Samaržija-Jovanović, S., Jovanović, V., Jovanović, T., Petković, B., Marković, G., Porobić, S.,& Marinović-Cincović, M.. (2022). Synthesis, characterization, hydrolytic, and thermal stability of urea–formaldehyde composites based on modified montmorillonite K10. in Journal of Thermal Analysis and Calorimetry.
https://doi.org/10.1007/s10973-022-11238-2

Samaržija-Jovanović S, Jovanović V, Jovanović T, Petković B, Marković G, Porobić S, Marinović-Cincović M. Synthesis, characterization, hydrolytic, and thermal stability of urea–formaldehyde composites based on modified montmorillonite K10. in Journal of Thermal Analysis and Calorimetry. 2022;.
doi:10.1007/s10973-022-11238-2 .

Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Jovanović, Tijana, Petković, Branka, Marković, Gordana, Porobić, Slavica, Marinović-Cincović, Milena, "Synthesis, characterization, hydrolytic, and thermal stability of urea–formaldehyde composites based on modified montmorillonite K10" in Journal of Thermal Analysis and Calorimetry (2022),
https://doi.org/10.1007/s10973-022-11238-2 . .

TY  - CONF
AU  - Ristić, Mirjana
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Petković, Branka
AU  - Kostić, Marija
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11113
AB  - Fig (Ficus carica L.) is a fruit of the Moraceae family, which is mostly grown in subtropical regions, but also grows in Serbia. Fig trees are usually grown in warm and dry climates. According to the FAO world production of figs is stable, with a decade-long average of about 1.1 million tons a year. Fig pomace are formed after fermentation of this fruit which is used for the preparation of brandy. The brandy industry generates huge amounts of pomace as industrial waste, so pyrolysis as thermochemical technologies was used for organic agro-industrial waste treatment. Biochar produced by pyrolysis of fig pomace at 500 °C were characterized and investigated as adsorbents for the removal of Pb2+ ions from aqueous solution. Fig pomace before and after pyrolysis was characterized using proximate, inorganic and elemental analysis, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and differential thermal analysis (DTA). Biochar has a carbon matrix with a high degree of porosity and large surface area, suggesting that it can be used as a surface adsorbent and thus have a significant role in controlling environmental contaminants. The surface modification by gamma irradiation was done to enhance the adsorption capacity of biochar. The Pb2+ ions contents in aqueous solution were analyzed using ICP-OES. The adsorption capacity was estimated using the Freundlich and Langmuir model. The results of this work suggest that pyrolysis and irradiation of biomass is a promising way to produce efficient heavy metal sorbents for waste-water treatment.
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2022 : 10th Jubilee International Conference on Radiation in Various Fields of Research : book of abstracts; June 13-17; Herceg Novi, Montenegro
T1  - Cross-linked bio/inorganically modified urea-formaldehyde
resins: Influence of γ-radiation on formaldehyde content
SP  - 61
DO  - 10.21175/rad.spr.abstr.book.2022.16.5
ER  - 

@conference{
author = "Ristić, Mirjana and Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Petković, Branka and Kostić, Marija and Jovanović, Tijana and Marković, Gordana and Marinović-Cincović, Milena",
year = "2022",
abstract = "Fig (Ficus carica L.) is a fruit of the Moraceae family, which is mostly grown in subtropical regions, but also grows in Serbia. Fig trees are usually grown in warm and dry climates. According to the FAO world production of figs is stable, with a decade-long average of about 1.1 million tons a year. Fig pomace are formed after fermentation of this fruit which is used for the preparation of brandy. The brandy industry generates huge amounts of pomace as industrial waste, so pyrolysis as thermochemical technologies was used for organic agro-industrial waste treatment. Biochar produced by pyrolysis of fig pomace at 500 °C were characterized and investigated as adsorbents for the removal of Pb2+ ions from aqueous solution. Fig pomace before and after pyrolysis was characterized using proximate, inorganic and elemental analysis, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and differential thermal analysis (DTA). Biochar has a carbon matrix with a high degree of porosity and large surface area, suggesting that it can be used as a surface adsorbent and thus have a significant role in controlling environmental contaminants. The surface modification by gamma irradiation was done to enhance the adsorption capacity of biochar. The Pb2+ ions contents in aqueous solution were analyzed using ICP-OES. The adsorption capacity was estimated using the Freundlich and Langmuir model. The results of this work suggest that pyrolysis and irradiation of biomass is a promising way to produce efficient heavy metal sorbents for waste-water treatment.",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2022 : 10th Jubilee International Conference on Radiation in Various Fields of Research : book of abstracts; June 13-17; Herceg Novi, Montenegro",
title = "Cross-linked bio/inorganically modified urea-formaldehyde
resins: Influence of γ-radiation on formaldehyde content",
pages = "61",
doi = "10.21175/rad.spr.abstr.book.2022.16.5"
}

Ristić, M., Samaržija-Jovanović, S., Jovanović, V., Petković, B., Kostić, M., Jovanović, T., Marković, G.,& Marinović-Cincović, M.. (2022). Cross-linked bio/inorganically modified urea-formaldehyde
resins: Influence of γ-radiation on formaldehyde content. in RAD 2022 : 10th Jubilee International Conference on Radiation in Various Fields of Research : book of abstracts; June 13-17; Herceg Novi, Montenegro
RAD Centre, Niš, Serbia., 61.
https://doi.org/10.21175/rad.spr.abstr.book.2022.16.5

Ristić M, Samaržija-Jovanović S, Jovanović V, Petković B, Kostić M, Jovanović T, Marković G, Marinović-Cincović M. Cross-linked bio/inorganically modified urea-formaldehyde
resins: Influence of γ-radiation on formaldehyde content. in RAD 2022 : 10th Jubilee International Conference on Radiation in Various Fields of Research : book of abstracts; June 13-17; Herceg Novi, Montenegro. 2022;:61.
doi:10.21175/rad.spr.abstr.book.2022.16.5 .

Ristić, Mirjana, Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Petković, Branka, Kostić, Marija, Jovanović, Tijana, Marković, Gordana, Marinović-Cincović, Milena, "Cross-linked bio/inorganically modified urea-formaldehyde
resins: Influence of γ-radiation on formaldehyde content" in RAD 2022 : 10th Jubilee International Conference on Radiation in Various Fields of Research : book of abstracts; June 13-17; Herceg Novi, Montenegro (2022):61,
https://doi.org/10.21175/rad.spr.abstr.book.2022.16.5 . .

TY  - CONF
AU  - Ristić, Mirjana
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Kostić, Marija
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12248
AB  - The effect of different montmorillonites (KSF and K10) and their modifications (Na-KSF, Na-K10) on content of formaldehyde-FA (free and liberated) modified urea-formaldehyde (UF) composites was investigated. KSF and K10 were modified by sodium chloride (NaCl). A total of four samples were synthesized, with the designations UF/KSF, UF/Na-KSF, UF/K10, and UF/Na-K10, under the same conditions. The content of free FA was determined by the bisulfite method. The hydrolytic stability of modified UF resin was determined by measuring the concentration of liberated FA of modified UF composites after acid hydrolysis. The specific surface area of the tested montmorillonites was determined by the Sear's method. Higher values of specific surface area were obtained for pure KSF (149.4 m2/g) compared to modified Na-KSF (48.6 m2/g). Specific surface area for pure K10 was 111 m 2/g, compared to value of 71 m2/g for modified Na-K10. The amount of free and liberated FA was 0.4%, 0.12% and 1.2% and 2.3%, respectively for UF/KSF and UF/Na-KSF composite. The values for free FA for UF/K10 and UF/Na-K10 composite are the same and amount to 0.6%. It was concluded that the UF/Na-KSF composite has a smaller content of free FA (0.12%) compared to other UF composites. The UF/KSF composite has a higher resistance to acidic hydrolysis and lower liberated FA percent (1.2%).
PB  - Novi Sad : University of Novi Sad, Faculty of Technology
C3  - 2nd International Conference on Advanced Production and Processing : the book of abstracts; Oct 20-22, Novi Sad
T1  - Influence of modified montmorillonites on formaldehyde content in urea-formaldehyde/montmorillonite composites
SP  - 122
EP  - 122
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12248
ER  - 

@conference{
author = "Ristić, Mirjana and Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Kostić, Marija and Jovanović, Tijana and Marković, Gordana and Marinović-Cincović, Milena",
year = "2022",
abstract = "The effect of different montmorillonites (KSF and K10) and their modifications (Na-KSF, Na-K10) on content of formaldehyde-FA (free and liberated) modified urea-formaldehyde (UF) composites was investigated. KSF and K10 were modified by sodium chloride (NaCl). A total of four samples were synthesized, with the designations UF/KSF, UF/Na-KSF, UF/K10, and UF/Na-K10, under the same conditions. The content of free FA was determined by the bisulfite method. The hydrolytic stability of modified UF resin was determined by measuring the concentration of liberated FA of modified UF composites after acid hydrolysis. The specific surface area of the tested montmorillonites was determined by the Sear's method. Higher values of specific surface area were obtained for pure KSF (149.4 m2/g) compared to modified Na-KSF (48.6 m2/g). Specific surface area for pure K10 was 111 m 2/g, compared to value of 71 m2/g for modified Na-K10. The amount of free and liberated FA was 0.4%, 0.12% and 1.2% and 2.3%, respectively for UF/KSF and UF/Na-KSF composite. The values for free FA for UF/K10 and UF/Na-K10 composite are the same and amount to 0.6%. It was concluded that the UF/Na-KSF composite has a smaller content of free FA (0.12%) compared to other UF composites. The UF/KSF composite has a higher resistance to acidic hydrolysis and lower liberated FA percent (1.2%).",
publisher = "Novi Sad : University of Novi Sad, Faculty of Technology",
journal = "2nd International Conference on Advanced Production and Processing : the book of abstracts; Oct 20-22, Novi Sad",
title = "Influence of modified montmorillonites on formaldehyde content in urea-formaldehyde/montmorillonite composites",
pages = "122-122",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12248"
}

Ristić, M., Samaržija-Jovanović, S., Jovanović, V., Kostić, M., Jovanović, T., Marković, G.,& Marinović-Cincović, M.. (2022). Influence of modified montmorillonites on formaldehyde content in urea-formaldehyde/montmorillonite composites. in 2nd International Conference on Advanced Production and Processing : the book of abstracts; Oct 20-22, Novi Sad
Novi Sad : University of Novi Sad, Faculty of Technology., 122-122.
https://hdl.handle.net/21.15107/rcub_vinar_12248

Ristić M, Samaržija-Jovanović S, Jovanović V, Kostić M, Jovanović T, Marković G, Marinović-Cincović M. Influence of modified montmorillonites on formaldehyde content in urea-formaldehyde/montmorillonite composites. in 2nd International Conference on Advanced Production and Processing : the book of abstracts; Oct 20-22, Novi Sad. 2022;:122-122.
https://hdl.handle.net/21.15107/rcub_vinar_12248 .

Ristić, Mirjana, Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Kostić, Marija, Jovanović, Tijana, Marković, Gordana, Marinović-Cincović, Milena, "Influence of modified montmorillonites on formaldehyde content in urea-formaldehyde/montmorillonite composites" in 2nd International Conference on Advanced Production and Processing : the book of abstracts; Oct 20-22, Novi Sad (2022):122-122,
https://hdl.handle.net/21.15107/rcub_vinar_12248 .

TY  - JOUR
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Jovanović, Tijana
AU  - Kostić, Marija
AU  - Petković, Branka
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10193
AB  - Urea-formaldehyde (UF) composites with a formaldehyde/urea (FA/U) ratio = 0.8 and different particle sizes of montmorillonite (MMT), namely UF/KSF and UF/K10 were synthesized. The hydrolytic stability of modified UF composites was determined by measuring the content of the liberated formaldehyde of modified UF composites after acid hydrolysis. The synthesized modified UF composites were irradiated (50 kGy) and the effect of γ–irradiation was evaluated on the basis of these thermal behaviors. The thermal behavior was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermo-gravimetry (DTG), and differential thermal analysis (DTA) supported by data from Fourier transform infrared spectroscopy (FTIR). The minimum percentages of free (0.4%) and liberated (1.2%) formaldehyde were obtained in the UF/KSF composite. The modified UF/KSF composite shows better radiation resistance than the modified UF/K10 composite. The shift of temperature values for the selected mass losses (T5%) to higher temperatures indicates an increase in the thermal stability of the UF/K10 composite after γ–irradiation. γ–irradiation causes a decrease in the absorption intensity of bands in the FTIR spectrum of a modified UF/KSF composite and an increase in the absorption intensity of bands in the FTIR spectrum of a modified UF/K10 composite. © 2022 Elsevier Ltd
T2  - International Journal of Adhesion and Adhesives
T1  - Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size
VL  - 115
SP  - 103131
DO  - 10.1016/j.ijadhadh.2022.103131
ER  - 

@article{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Jovanović, Tijana and Kostić, Marija and Petković, Branka and Marković, Gordana and Marinović-Cincović, Milena",
year = "2022",
abstract = "Urea-formaldehyde (UF) composites with a formaldehyde/urea (FA/U) ratio = 0.8 and different particle sizes of montmorillonite (MMT), namely UF/KSF and UF/K10 were synthesized. The hydrolytic stability of modified UF composites was determined by measuring the content of the liberated formaldehyde of modified UF composites after acid hydrolysis. The synthesized modified UF composites were irradiated (50 kGy) and the effect of γ–irradiation was evaluated on the basis of these thermal behaviors. The thermal behavior was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermo-gravimetry (DTG), and differential thermal analysis (DTA) supported by data from Fourier transform infrared spectroscopy (FTIR). The minimum percentages of free (0.4%) and liberated (1.2%) formaldehyde were obtained in the UF/KSF composite. The modified UF/KSF composite shows better radiation resistance than the modified UF/K10 composite. The shift of temperature values for the selected mass losses (T5%) to higher temperatures indicates an increase in the thermal stability of the UF/K10 composite after γ–irradiation. γ–irradiation causes a decrease in the absorption intensity of bands in the FTIR spectrum of a modified UF/KSF composite and an increase in the absorption intensity of bands in the FTIR spectrum of a modified UF/K10 composite. © 2022 Elsevier Ltd",
journal = "International Journal of Adhesion and Adhesives",
title = "Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size",
volume = "115",
pages = "103131",
doi = "10.1016/j.ijadhadh.2022.103131"
}

Samaržija-Jovanović, S., Jovanović, V., Jovanović, T., Kostić, M., Petković, B., Marković, G.,& Marinović-Cincović, M.. (2022). Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size. in International Journal of Adhesion and Adhesives, 115, 103131.
https://doi.org/10.1016/j.ijadhadh.2022.103131

Samaržija-Jovanović S, Jovanović V, Jovanović T, Kostić M, Petković B, Marković G, Marinović-Cincović M. Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size. in International Journal of Adhesion and Adhesives. 2022;115:103131.
doi:10.1016/j.ijadhadh.2022.103131 .

Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Jovanović, Tijana, Kostić, Marija, Petković, Branka, Marković, Gordana, Marinović-Cincović, Milena, "Hydrolytic, thermal and radiation stability of modified urea-formaldehyde composites: Influence of montmorillonite particle size" in International Journal of Adhesion and Adhesives, 115 (2022):103131,
https://doi.org/10.1016/j.ijadhadh.2022.103131 . .

TY  - JOUR
AU  - Jovanović, Vojislav
AU  - Samaržija-Jovanović, Suzana
AU  - Petković, Branka B.
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Porobić, Slavica
AU  - Marinović-Cincović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8907
AB  - The hydrolytic stability of two nano-SiO2-based UF composites with derivates of coumarin (names as K-1 and K-2) was investigated. K-1 is 3-nitro-4-(p-tolylamino)-2H-chromen-2-one and K-2: 4-((3-nitro-2-oxo-2H-chromen-4-yl)amino)benzenesulfonamide. Two types of nano-silica-based urea–formaldehyde (UF), composite materials with a formaldehyde-to-urea (F/U) ratio of 0.8, were synthesized (UF/K-1/SiO2, and UF/K-2/SiO2). The hydrolytic stability of modified UF composite was determined by measuring the mass loss and liberated formaldehyde concentration of modified UF composite after acid hydrolysis. Obtained results showed that the hydrolytic stability of modified resins with derivates of coumarin was enhanced. The formaldehyde emission of modified UF/K-1/SiO2 composite is lower compared with UF/K-2/SiO2 composite. The thermal behavior of materials was studied by non-isothermal thermo-gravimetric analysis and differential thermal gravimetry supported by data from ATR-IR spectroscopy. The shift of temperature values for selected mass losses (T5%) to a high temperature indicates the increase in thermal stability of samples based on UF resin modified with K-2. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Polymer Bulletin
T1  - Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability
VL  - 78
IS  - 1
SP  - 399
EP  - 413
DO  - 10.1007/s00289-020-03114-6
ER  - 

@article{
author = "Jovanović, Vojislav and Samaržija-Jovanović, Suzana and Petković, Branka B. and Jovanović, Slaviša and Marković, Gordana and Porobić, Slavica and Marinović-Cincović, Milena",
year = "2021",
abstract = "The hydrolytic stability of two nano-SiO2-based UF composites with derivates of coumarin (names as K-1 and K-2) was investigated. K-1 is 3-nitro-4-(p-tolylamino)-2H-chromen-2-one and K-2: 4-((3-nitro-2-oxo-2H-chromen-4-yl)amino)benzenesulfonamide. Two types of nano-silica-based urea–formaldehyde (UF), composite materials with a formaldehyde-to-urea (F/U) ratio of 0.8, were synthesized (UF/K-1/SiO2, and UF/K-2/SiO2). The hydrolytic stability of modified UF composite was determined by measuring the mass loss and liberated formaldehyde concentration of modified UF composite after acid hydrolysis. Obtained results showed that the hydrolytic stability of modified resins with derivates of coumarin was enhanced. The formaldehyde emission of modified UF/K-1/SiO2 composite is lower compared with UF/K-2/SiO2 composite. The thermal behavior of materials was studied by non-isothermal thermo-gravimetric analysis and differential thermal gravimetry supported by data from ATR-IR spectroscopy. The shift of temperature values for selected mass losses (T5%) to a high temperature indicates the increase in thermal stability of samples based on UF resin modified with K-2. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Polymer Bulletin",
title = "Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability",
volume = "78",
number = "1",
pages = "399-413",
doi = "10.1007/s00289-020-03114-6"
}

Jovanović, V., Samaržija-Jovanović, S., Petković, B. B., Jovanović, S., Marković, G., Porobić, S.,& Marinović-Cincović, M.. (2021). Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability. in Polymer Bulletin, 78(1), 399-413.
https://doi.org/10.1007/s00289-020-03114-6

Jovanović V, Samaržija-Jovanović S, Petković BB, Jovanović S, Marković G, Porobić S, Marinović-Cincović M. Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability. in Polymer Bulletin. 2021;78(1):399-413.
doi:10.1007/s00289-020-03114-6 .

Jovanović, Vojislav, Samaržija-Jovanović, Suzana, Petković, Branka B., Jovanović, Slaviša, Marković, Gordana, Porobić, Slavica, Marinović-Cincović, Milena, "Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability" in Polymer Bulletin, 78, no. 1 (2021):399-413,
https://doi.org/10.1007/s00289-020-03114-6 . .

TY  - CONF
AU  - Jovanović, Vojislav
AU  - Samaržija-Jovanović, Suzana
AU  - Petković, Branka
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
AU  - Teofilović, Vesna
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11125
AB  - The montmorillonite as a 2:1 smectite type clay has two tetrahedral sheets of silica sandwiching the alumina octahedral sheet. The particles of this mineral are plate-shaped with the thickness of 0.96 nm and an average diameter about 1 μm. This type of clay (K10) is using to improve the characteristics of different materials in the fields of catalysis, food additives, polymers, sorbents, etc. In this study thermally activated montmorillonite (DK10) was used because the thermal treatment alters its properties. The degree of activation was determined using specific surface measurement (Sear’s method). The specific surface area (SSA) of K10 was 119 m2/g but after the thermal treatmant it was 317.4 m2/g. The effect of UV-irradiation on the thermal stability of a urea-formaldehide resin (UF) nanocomposites based on DTK10 was assessed. For this purpose UF nanocomposites were synthesized and irradiated using UV light at two wavelengths l (254 and 366 nm). Characterization of nanocomposites with modified and not modified clay was performed using XRD, FTIR, and TG/DTA analysis. The peaks at 2q values of 26.74, 26.6, 26.54, 26.6 originate from quartz in sample DTK10, non-irradiated UF/DTK10 and UV-irradiated sample at l=254 nm and l= 366nm, respectively. From the IR spectra it was assessed that intensity of the carboxyl group at 1630 cm−1 decreased with UVirradiation in modified nanocomposite. The aliphatic stretch band about 2956 cm−1 and –C–O band at 1130 cm−1 also decreases due to the formation of hydrogen bonds with the hydroxyl groups on the DTK10 surface. Based on thermogravimetric measurements it was estimated that before and after UV-irradiation modified UF/DTK10 nanocomposites have almost identical temperature intervals in which degradation processes are occurred. The total mass loss for non-irradiated and irradiated UF/DTK10 was 60.18, 55.26 and 58.6%, respectively
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro
T1  - The effect of UV-irradiation on the thermal stability of modified urea-formaldehyde resins with thermally activated montmorillonite
SP  - 103
DO  - 10.21175/rad.abstr.book.2021.15.19
ER  - 

@conference{
author = "Jovanović, Vojislav and Samaržija-Jovanović, Suzana and Petković, Branka and Jovanović, Tijana and Marković, Gordana and Marinović-Cincović, Milena and Teofilović, Vesna",
year = "2021",
abstract = "The montmorillonite as a 2:1 smectite type clay has two tetrahedral sheets of silica sandwiching the alumina octahedral sheet. The particles of this mineral are plate-shaped with the thickness of 0.96 nm and an average diameter about 1 μm. This type of clay (K10) is using to improve the characteristics of different materials in the fields of catalysis, food additives, polymers, sorbents, etc. In this study thermally activated montmorillonite (DK10) was used because the thermal treatment alters its properties. The degree of activation was determined using specific surface measurement (Sear’s method). The specific surface area (SSA) of K10 was 119 m2/g but after the thermal treatmant it was 317.4 m2/g. The effect of UV-irradiation on the thermal stability of a urea-formaldehide resin (UF) nanocomposites based on DTK10 was assessed. For this purpose UF nanocomposites were synthesized and irradiated using UV light at two wavelengths l (254 and 366 nm). Characterization of nanocomposites with modified and not modified clay was performed using XRD, FTIR, and TG/DTA analysis. The peaks at 2q values of 26.74, 26.6, 26.54, 26.6 originate from quartz in sample DTK10, non-irradiated UF/DTK10 and UV-irradiated sample at l=254 nm and l= 366nm, respectively. From the IR spectra it was assessed that intensity of the carboxyl group at 1630 cm−1 decreased with UVirradiation in modified nanocomposite. The aliphatic stretch band about 2956 cm−1 and –C–O band at 1130 cm−1 also decreases due to the formation of hydrogen bonds with the hydroxyl groups on the DTK10 surface. Based on thermogravimetric measurements it was estimated that before and after UV-irradiation modified UF/DTK10 nanocomposites have almost identical temperature intervals in which degradation processes are occurred. The total mass loss for non-irradiated and irradiated UF/DTK10 was 60.18, 55.26 and 58.6%, respectively",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro",
title = "The effect of UV-irradiation on the thermal stability of modified urea-formaldehyde resins with thermally activated montmorillonite",
pages = "103",
doi = "10.21175/rad.abstr.book.2021.15.19"
}

Jovanović, V., Samaržija-Jovanović, S., Petković, B., Jovanović, T., Marković, G., Marinović-Cincović, M.,& Teofilović, V.. (2021). The effect of UV-irradiation on the thermal stability of modified urea-formaldehyde resins with thermally activated montmorillonite. in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro
RAD Centre, Niš, Serbia., 103.
https://doi.org/10.21175/rad.abstr.book.2021.15.19

Jovanović V, Samaržija-Jovanović S, Petković B, Jovanović T, Marković G, Marinović-Cincović M, Teofilović V. The effect of UV-irradiation on the thermal stability of modified urea-formaldehyde resins with thermally activated montmorillonite. in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro. 2021;:103.
doi:10.21175/rad.abstr.book.2021.15.19 .

Jovanović, Vojislav, Samaržija-Jovanović, Suzana, Petković, Branka, Jovanović, Tijana, Marković, Gordana, Marinović-Cincović, Milena, Teofilović, Vesna, "The effect of UV-irradiation on the thermal stability of modified urea-formaldehyde resins with thermally activated montmorillonite" in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro (2021):103,
https://doi.org/10.21175/rad.abstr.book.2021.15.19 . .

TY  - CONF
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
AU  - Jovanović, Vojislav
AU  - Samaržija-Jovanović, Suzana
AU  - Teofilović, Vesna
AU  - Marković, Marija
AU  - Pavličević, Jelena
AU  - Budinski Simendić, Jaroslava
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11132
AB  - Effect of waste rubber particles (WTR) size on elastomers based on natural rubber and chlorosulfonated polyethylene rubber (NR/CSM= 50:50) was studied. Two types of WTR with different particle size (150–250 μm and 450–600μm) were used. The content of carbon black was constant but the content of WTR was varied from 0 to 40 phr. The compounds were prepared by tworoll mill. The crosslinked materials were obtained in hydraulic press. The irradiation of prepared composite materials was carried out using 60Co gamma source at ambient temperature with the dose rate 10 kGyh-1 and different total absorbed dose (100, 200 and 400 kGy). The morphology of the samples was examined by scanning electron microscopy. It was assessed that WTR with smaller size got uniform dispersion. Mechanicals properties were assessed for irradiated and not-irradiated samples. It was estimated that the waste rubber particles with smaller size affected better enhancement of the mechanical properties. However, tensile strength and elongation at break decreased with increasing of WTR content.
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro
T1  - Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder
SP  - 306
DO  - 10.21175/rad.abstr.book.2021.38.11
ER  - 

@conference{
author = "Marković, Gordana and Marinović-Cincović, Milena and Jovanović, Vojislav and Samaržija-Jovanović, Suzana and Teofilović, Vesna and Marković, Marija and Pavličević, Jelena and Budinski Simendić, Jaroslava",
year = "2021",
abstract = "Effect of waste rubber particles (WTR) size on elastomers based on natural rubber and chlorosulfonated polyethylene rubber (NR/CSM= 50:50) was studied. Two types of WTR with different particle size (150–250 μm and 450–600μm) were used. The content of carbon black was constant but the content of WTR was varied from 0 to 40 phr. The compounds were prepared by tworoll mill. The crosslinked materials were obtained in hydraulic press. The irradiation of prepared composite materials was carried out using 60Co gamma source at ambient temperature with the dose rate 10 kGyh-1 and different total absorbed dose (100, 200 and 400 kGy). The morphology of the samples was examined by scanning electron microscopy. It was assessed that WTR with smaller size got uniform dispersion. Mechanicals properties were assessed for irradiated and not-irradiated samples. It was estimated that the waste rubber particles with smaller size affected better enhancement of the mechanical properties. However, tensile strength and elongation at break decreased with increasing of WTR content.",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro",
title = "Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder",
pages = "306",
doi = "10.21175/rad.abstr.book.2021.38.11"
}

Marković, G., Marinović-Cincović, M., Jovanović, V., Samaržija-Jovanović, S., Teofilović, V., Marković, M., Pavličević, J.,& Budinski Simendić, J.. (2021). Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder. in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro
RAD Centre, Niš, Serbia., 306.
https://doi.org/10.21175/rad.abstr.book.2021.38.11

Marković G, Marinović-Cincović M, Jovanović V, Samaržija-Jovanović S, Teofilović V, Marković M, Pavličević J, Budinski Simendić J. Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder. in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro. 2021;:306.
doi:10.21175/rad.abstr.book.2021.38.11 .

Marković, Gordana, Marinović-Cincović, Milena, Jovanović, Vojislav, Samaržija-Jovanović, Suzana, Teofilović, Vesna, Marković, Marija, Pavličević, Jelena, Budinski Simendić, Jaroslava, "Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder" in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro (2021):306,
https://doi.org/10.21175/rad.abstr.book.2021.38.11 . .

TY  - JOUR
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Petković, Branka
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Porobić, Slavica
AU  - Papan, Jelena
AU  - Marinović-Cincović, Milena
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9012
AB  - Urea-formaldehyde resin (F/U ratio of 0.8)/thermally activated montmorillonite (UF/Delta TK10) nanocomposite was synthesized. The hydrolytical, thermal, and UV radiation stability of UF/Delta TK10 nanocomposites are determined. UF hybrid nanocomposites have been irradiated with UV light with a wavelength of 254 nm and 366 nm, and after that, their radiation stability was evaluated. The free formaldehyde (FA) percentage in all prepared samples was determined. The sample was characterized by using X-ray diffraction analysis (XRD), nonisothermal thermogravimetric analysis (TGA), differential thermal analysis (DTA), and differential thermal gravimetry (DTG), with infrared (FTIR) spectroscopy. Crosslinked UF/Delta TK10 nanocomposite shows the highest resistance to acid hydrolysis after UV irradiation at a wavelength of 254 nm. The values for T-5% are identical for the unirradiated and UV irradiated (wavelength of 366 nm) UF/Delta TK10 nanocomposite. It can be concluded that this sample is thermally most stable and shows good resistance to UV irradiation.
T2  - Polymer Composites
T1  - Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites
VL  - 41
IS  - 9
SP  - 3575
EP  - 3584
DO  - 10.1002/pc.25644
ER  - 

@article{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Petković, Branka and Jovanović, Tijana and Marković, Gordana and Porobić, Slavica and Papan, Jelena and Marinović-Cincović, Milena",
year = "2020",
abstract = "Urea-formaldehyde resin (F/U ratio of 0.8)/thermally activated montmorillonite (UF/Delta TK10) nanocomposite was synthesized. The hydrolytical, thermal, and UV radiation stability of UF/Delta TK10 nanocomposites are determined. UF hybrid nanocomposites have been irradiated with UV light with a wavelength of 254 nm and 366 nm, and after that, their radiation stability was evaluated. The free formaldehyde (FA) percentage in all prepared samples was determined. The sample was characterized by using X-ray diffraction analysis (XRD), nonisothermal thermogravimetric analysis (TGA), differential thermal analysis (DTA), and differential thermal gravimetry (DTG), with infrared (FTIR) spectroscopy. Crosslinked UF/Delta TK10 nanocomposite shows the highest resistance to acid hydrolysis after UV irradiation at a wavelength of 254 nm. The values for T-5% are identical for the unirradiated and UV irradiated (wavelength of 366 nm) UF/Delta TK10 nanocomposite. It can be concluded that this sample is thermally most stable and shows good resistance to UV irradiation.",
journal = "Polymer Composites",
title = "Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites",
volume = "41",
number = "9",
pages = "3575-3584",
doi = "10.1002/pc.25644"
}

Samaržija-Jovanović, S., Jovanović, V., Petković, B., Jovanović, T., Marković, G., Porobić, S., Papan, J.,& Marinović-Cincović, M.. (2020). Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites. in Polymer Composites, 41(9), 3575-3584.
https://doi.org/10.1002/pc.25644

Samaržija-Jovanović S, Jovanović V, Petković B, Jovanović T, Marković G, Porobić S, Papan J, Marinović-Cincović M. Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites. in Polymer Composites. 2020;41(9):3575-3584.
doi:10.1002/pc.25644 .

Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Petković, Branka, Jovanović, Tijana, Marković, Gordana, Porobić, Slavica, Papan, Jelena, Marinović-Cincović, Milena, "Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites" in Polymer Composites, 41, no. 9 (2020):3575-3584,
https://doi.org/10.1002/pc.25644 . .

TY  - JOUR
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Petković, Branka B.
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Porobić, Slavica
AU  - Marinović-Cincović, Milena
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1359836818325174
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7997
AB  - The thermal stability of organic-inorganic nano-composites prepared by a two-stage polymerization of urea-formaldehyde resin (UF) with furfuryl alcohol (FA) and TiO2 before and after irradiation has been researched. The two resins of urea-formaldehyde–TiO2 composites, named: UF/TiO2 and UF/TiO2/FA, were synthesized. The thermal stability of obtained materials was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermal gravimetry (DTG) and differential thermal analysis (DTA). UF hybrid composites have been irradiated (50 kGy) and after that their radiation stability was evaluated on the basis of thermal behavior. The free formaldehyde (HCOH) percentage in all prepared samples was determined. The minimum percentage values of free formaldehyde (0.04% and 0.03%) for UF/TiO2 and UF/TiO2/FA, respectively, after irradiation dose of 50 kGy are detected. The shift of temperature values for selected mass losses (T10%) to a high temperature indicates the increase in thermal stability of samples based on UF resin modified with FA.
T2  - Composites: Part B: Engineering
T1  - Radiation stability and thermal behaviour of modified UF resin using biorenewable raw material-furfuryl alcohol
VL  - 167
SP  - 161
EP  - 166
DO  - 10.1016/j.compositesb.2018.12.024
ER  - 

@article{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Petković, Branka B. and Jovanović, Slaviša and Marković, Gordana and Porobić, Slavica and Marinović-Cincović, Milena",
year = "2019",
abstract = "The thermal stability of organic-inorganic nano-composites prepared by a two-stage polymerization of urea-formaldehyde resin (UF) with furfuryl alcohol (FA) and TiO2 before and after irradiation has been researched. The two resins of urea-formaldehyde–TiO2 composites, named: UF/TiO2 and UF/TiO2/FA, were synthesized. The thermal stability of obtained materials was studied by non-isothermal thermo-gravimetric analysis (TG), differential thermal gravimetry (DTG) and differential thermal analysis (DTA). UF hybrid composites have been irradiated (50 kGy) and after that their radiation stability was evaluated on the basis of thermal behavior. The free formaldehyde (HCOH) percentage in all prepared samples was determined. The minimum percentage values of free formaldehyde (0.04% and 0.03%) for UF/TiO2 and UF/TiO2/FA, respectively, after irradiation dose of 50 kGy are detected. The shift of temperature values for selected mass losses (T10%) to a high temperature indicates the increase in thermal stability of samples based on UF resin modified with FA.",
journal = "Composites: Part B: Engineering",
title = "Radiation stability and thermal behaviour of modified UF resin using biorenewable raw material-furfuryl alcohol",
volume = "167",
pages = "161-166",
doi = "10.1016/j.compositesb.2018.12.024"
}

Samaržija-Jovanović, S., Jovanović, V., Petković, B. B., Jovanović, S., Marković, G., Porobić, S.,& Marinović-Cincović, M.. (2019). Radiation stability and thermal behaviour of modified UF resin using biorenewable raw material-furfuryl alcohol. in Composites: Part B: Engineering, 167, 161-166.
https://doi.org/10.1016/j.compositesb.2018.12.024

Samaržija-Jovanović S, Jovanović V, Petković BB, Jovanović S, Marković G, Porobić S, Marinović-Cincović M. Radiation stability and thermal behaviour of modified UF resin using biorenewable raw material-furfuryl alcohol. in Composites: Part B: Engineering. 2019;167:161-166.
doi:10.1016/j.compositesb.2018.12.024 .

Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Petković, Branka B., Jovanović, Slaviša, Marković, Gordana, Porobić, Slavica, Marinović-Cincović, Milena, "Radiation stability and thermal behaviour of modified UF resin using biorenewable raw material-furfuryl alcohol" in Composites: Part B: Engineering, 167 (2019):161-166,
https://doi.org/10.1016/j.compositesb.2018.12.024 . .

TY  - JOUR
AU  - Jovanović, Vojislav
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Samaržija-Jovanović, Suzana
AU  - Porobić, Slavica
AU  - Budinski-Simendić, Jaroslava K.
AU  - Marinović-Cincović, Milena
PY  - 2019
UR  - https://onlinelibrary.wiley.com/doi/abs/10.1002/pc.24854
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8138
AB  - The powder recycled rubber (PRR) can be used as a filler and a modifier for elastomeric materials and asphalt. Composites based on elastomers and recycled rubber powders are a serious challenge for the environment. The main goal of this paper was to study the effect of rubber powder on the mechanical properties of elastomeric composites based on three precursors of the network. Triple blends were prepared using non-polar natural rubber (NR), polyisoprene rubber (BR), and styrene-butadiene rubber (SBR) (mass ratio 40/40/20). In all rubber compounds, the carbon black (CB)/PRR mass ratio is constant (60). Samples were prepared using two roll mill. The characteristics of hardening (optimum cure time, scorch time, minimum and maximum torque) of rubber mixtures were tested. Tensile strength, modulus at 100% elongation and elongation at break are decreasing with PRR ratio is increasing. It is due to poor adhesion of PRR into NR/BR/SBR/CB matrix. The thermal degradation temperature shifts to a higher temperature up to 5 phr of PRR in NR/BR/SBR/CB rubber blends. Fourier-transform infrared spectra of NR/BR/SBR/CB/PRR samples show that the absorption bands shifted 7–15 cm−1 to higher wavenumbers and confirmed rubber–filler interaction. Morphology was assessed by scanning electron microscopy. POLYM. COMPOS., 40:1307–1314, 2019. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers
T2  - Polymer Composites
T1  - The properties of elastomeric composites based on three network precursors
VL  - 40
IS  - 4
SP  - 1307
EP  - 1314
DO  - 10.1002/pc.24854
ER  - 

@article{
author = "Jovanović, Vojislav and Jovanović, Slaviša and Marković, Gordana and Samaržija-Jovanović, Suzana and Porobić, Slavica and Budinski-Simendić, Jaroslava K. and Marinović-Cincović, Milena",
year = "2019",
abstract = "The powder recycled rubber (PRR) can be used as a filler and a modifier for elastomeric materials and asphalt. Composites based on elastomers and recycled rubber powders are a serious challenge for the environment. The main goal of this paper was to study the effect of rubber powder on the mechanical properties of elastomeric composites based on three precursors of the network. Triple blends were prepared using non-polar natural rubber (NR), polyisoprene rubber (BR), and styrene-butadiene rubber (SBR) (mass ratio 40/40/20). In all rubber compounds, the carbon black (CB)/PRR mass ratio is constant (60). Samples were prepared using two roll mill. The characteristics of hardening (optimum cure time, scorch time, minimum and maximum torque) of rubber mixtures were tested. Tensile strength, modulus at 100% elongation and elongation at break are decreasing with PRR ratio is increasing. It is due to poor adhesion of PRR into NR/BR/SBR/CB matrix. The thermal degradation temperature shifts to a higher temperature up to 5 phr of PRR in NR/BR/SBR/CB rubber blends. Fourier-transform infrared spectra of NR/BR/SBR/CB/PRR samples show that the absorption bands shifted 7–15 cm−1 to higher wavenumbers and confirmed rubber–filler interaction. Morphology was assessed by scanning electron microscopy. POLYM. COMPOS., 40:1307–1314, 2019. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "The properties of elastomeric composites based on three network precursors",
volume = "40",
number = "4",
pages = "1307-1314",
doi = "10.1002/pc.24854"
}

Jovanović, V., Jovanović, S., Marković, G., Samaržija-Jovanović, S., Porobić, S., Budinski-Simendić, J. K.,& Marinović-Cincović, M.. (2019). The properties of elastomeric composites based on three network precursors. in Polymer Composites, 40(4), 1307-1314.
https://doi.org/10.1002/pc.24854

Jovanović V, Jovanović S, Marković G, Samaržija-Jovanović S, Porobić S, Budinski-Simendić JK, Marinović-Cincović M. The properties of elastomeric composites based on three network precursors. in Polymer Composites. 2019;40(4):1307-1314.
doi:10.1002/pc.24854 .

Jovanović, Vojislav, Jovanović, Slaviša, Marković, Gordana, Samaržija-Jovanović, Suzana, Porobić, Slavica, Budinski-Simendić, Jaroslava K., Marinović-Cincović, Milena, "The properties of elastomeric composites based on three network precursors" in Polymer Composites, 40, no. 4 (2019):1307-1314,
https://doi.org/10.1002/pc.24854 . .

TY  - JOUR
AU  - Porobić, Slavica
AU  - Marković, Gordana
AU  - Ristić, Ivan
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Budinski-Simendić, Jaroslava K.
AU  - Marinović-Cincović, Milena
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8466
AB  - In this applicative work, two types of silica filler were used to increase the adhesion strength between steel and elastomeric hybrid materials based on chlorosulfonated polyethylene rubber (CSM) and polychloroprene rubber (CR) as network precursors. Precipitated silica (PS) with the average size of primary particles 15 nm and diatomaceous earth (DE) with the average size of primary particles 28 μm were used to ascertain differences in metal-elastomer compounds adhesion strength caused by different particle size. The ratio of network precursors in CSM/CR rubber blends was 50:50 (w/w). The filler loading was in the range of 0–35 phr. Characteristics of the obtained composites were examined by combining the cure kinetics, adhesion strength and the dynamic mechanical properties. The viscoelasticity of obtained hybrid materials was assessed by the mechanical spectrometer (in a single cantilever bending mode) in the temperature range from −50 °C to 150 °C using multifrequency mode. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Hybrid materials based on rubber blend nanocomposites
VL  - 40
IS  - 8
SP  - 3056
EP  - 3064
DO  - 10.1002/pc.25150
ER  - 

@article{
author = "Porobić, Slavica and Marković, Gordana and Ristić, Ivan and Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Budinski-Simendić, Jaroslava K. and Marinović-Cincović, Milena",
year = "2019",
abstract = "In this applicative work, two types of silica filler were used to increase the adhesion strength between steel and elastomeric hybrid materials based on chlorosulfonated polyethylene rubber (CSM) and polychloroprene rubber (CR) as network precursors. Precipitated silica (PS) with the average size of primary particles 15 nm and diatomaceous earth (DE) with the average size of primary particles 28 μm were used to ascertain differences in metal-elastomer compounds adhesion strength caused by different particle size. The ratio of network precursors in CSM/CR rubber blends was 50:50 (w/w). The filler loading was in the range of 0–35 phr. Characteristics of the obtained composites were examined by combining the cure kinetics, adhesion strength and the dynamic mechanical properties. The viscoelasticity of obtained hybrid materials was assessed by the mechanical spectrometer (in a single cantilever bending mode) in the temperature range from −50 °C to 150 °C using multifrequency mode. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Hybrid materials based on rubber blend nanocomposites",
volume = "40",
number = "8",
pages = "3056-3064",
doi = "10.1002/pc.25150"
}

Porobić, S., Marković, G., Ristić, I., Samaržija-Jovanović, S., Jovanović, V., Budinski-Simendić, J. K.,& Marinović-Cincović, M.. (2019). Hybrid materials based on rubber blend nanocomposites. in Polymer Composites, 40(8), 3056-3064.
https://doi.org/10.1002/pc.25150

Porobić S, Marković G, Ristić I, Samaržija-Jovanović S, Jovanović V, Budinski-Simendić JK, Marinović-Cincović M. Hybrid materials based on rubber blend nanocomposites. in Polymer Composites. 2019;40(8):3056-3064.
doi:10.1002/pc.25150 .

Porobić, Slavica, Marković, Gordana, Ristić, Ivan, Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Budinski-Simendić, Jaroslava K., Marinović-Cincović, Milena, "Hybrid materials based on rubber blend nanocomposites" in Polymer Composites, 40, no. 8 (2019):3056-3064,
https://doi.org/10.1002/pc.25150 . .

TY  - CONF
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Petković, Branka
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
AU  - Budinski-Simendić, Jaroslava K.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11150
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2019 : 7th International Conference on Radiation in Various Fields of Research : book of abstracts; June 10-14, 2019; Herceg Novi, Montenegro
T1  - The effect of UV irradiation on hydrolytic stability of urea-formaldehyde resins filled with thermally modified montmorillonite
SP  - 209
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11150
ER  - 

@conference{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Petković, Branka and Jovanović, Slaviša and Marković, Gordana and Marinović-Cincović, Milena and Budinski-Simendić, Jaroslava K.",
year = "2019",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2019 : 7th International Conference on Radiation in Various Fields of Research : book of abstracts; June 10-14, 2019; Herceg Novi, Montenegro",
title = "The effect of UV irradiation on hydrolytic stability of urea-formaldehyde resins filled with thermally modified montmorillonite",
pages = "209",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11150"
}

Samaržija-Jovanović, S., Jovanović, V., Petković, B., Jovanović, S., Marković, G., Marinović-Cincović, M.,& Budinski-Simendić, J. K.. (2019). The effect of UV irradiation on hydrolytic stability of urea-formaldehyde resins filled with thermally modified montmorillonite. in RAD 2019 : 7th International Conference on Radiation in Various Fields of Research : book of abstracts; June 10-14, 2019; Herceg Novi, Montenegro
RAD Centre, Niš, Serbia., 209.
https://hdl.handle.net/21.15107/rcub_vinar_11150

Samaržija-Jovanović S, Jovanović V, Petković B, Jovanović S, Marković G, Marinović-Cincović M, Budinski-Simendić JK. The effect of UV irradiation on hydrolytic stability of urea-formaldehyde resins filled with thermally modified montmorillonite. in RAD 2019 : 7th International Conference on Radiation in Various Fields of Research : book of abstracts; June 10-14, 2019; Herceg Novi, Montenegro. 2019;:209.
https://hdl.handle.net/21.15107/rcub_vinar_11150 .

Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Petković, Branka, Jovanović, Slaviša, Marković, Gordana, Marinović-Cincović, Milena, Budinski-Simendić, Jaroslava K., "The effect of UV irradiation on hydrolytic stability of urea-formaldehyde resins filled with thermally modified montmorillonite" in RAD 2019 : 7th International Conference on Radiation in Various Fields of Research : book of abstracts; June 10-14, 2019; Herceg Novi, Montenegro (2019):209,
https://hdl.handle.net/21.15107/rcub_vinar_11150 .

TY  - CONF
AU  - Jovanović, Vojislav D.
AU  - Samaržija-Jovanović, Suzana
AU  - Jevtić, Sonja
AU  - Petković, Branka B.
AU  - Marković, Gordana S.
AU  - Marinović-Cincović, Milena
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12692
AB  - Zbog emisije formaldehida (CH2 O) iz drvenih proizvoda, gde se urea- formaldehidne (UF) smole, između ostalog, koriste za impregnaciju drvenih panela koje se koriste u unutrašnjosti stambenih i drugih objekata poželjno je da procenat slobodnog formaldehida (CH2 O) u samoj smoli bude što manji, jer je poznato da formaldehid ima štetno dejstvo na čoveka, odnosno ceo živi svet. Pare formaldehida jako nadražuju disajne puteve. Koncentracije od 10-20 ppm otežavaju disanje, a koncentracije od 650 ppm mogu uzrokovati i smrt za samo nekoliko minuta. Često udisanje para niskih koncentracija mogu uzrokovati hronična oboljenja disajnih puteva. Simptomi i granice su individualni i javljaju se u širokim granicama izloženosti. Pojedine osobe mogu da osete simptome, kao što su iritacija očiju, grla, umor, glavobolja i mučnina, usled izloženosti i niskoj koncentaciji formaldehida (0.1 do 1 ppm). Osim slobodnog formaldehida, u samoj smoli, koji se spontano emituje, zbog niske otpornosti na vlagu, može doći do hidrolize UF smole što podrazumeva raskidanje samih veza u smoli (metilenetarskih) i dodatne emisije formaldehida u okolinu [1,2]. U ovom radu je ispitivana hidrolitička stabilnost modifikovanih UF smola sa “hvatačima” formaldehida, TiO2  sa različitim sadržajem (3,75 g i 7,25 g) u UF smoli i kombinacijom TiO2  i drvnog brašna (TiO2 /DB) u ekvimolarnim količinama. Tri modifikovane UF smole s odnosom formaldehida i uree (F/U) 0.8 s modifikovanim punilima su sintetizovani istim postupkom [3]. Hidrolitička stabilnost ispitivanih modifikovanih UF smola je određivana merenjem koncentracije oslobođenog formaldehida [4] iz modifikovane UF smole nakon kisele hidrolize. Zračenje sintetisanih modifikovanih smola je vršeno u vazdušnoj atmosferi u Co-60 radijacionoj jedinici na Institutu za nuklearne nauke, Vinča, Srbija. Uzorci smola su zračeni γ–zračenjem na sobnoj temperaturi i ukupnom apsorbovanom dozom od 50 kGy i 100 kGy [5]. Pre zračenja najmanji procenat slobodnog formaldehida (0.06%) imaju uzorci koji su modifikovani TiO2 . Usled γ-zračenja dolazi do degradacije makromolekula što uzrokuje povećanje slobodnog formaldehida u zračenim uzorcima u odnosu na nezračene. Povećanje doze zračenja sa 50 kGy na 100 kGy dovodi do smanjenja količine slobodnog formaldehida u umreženoj UF smoli. Najmanji procenat slobodnog formaldehida nakon zračenja sa ukupnom apsorbovanom dozom od 100 kGy nalazi se u UF smoli koja sadrži 100% TiO2 u količini od 0.12%. S druge strane i drvno brašno koje sadrži celulozu i hemicelulozu ima veliki broj hidroksilnih grupa, takođe reaguje sa slobodnim formaldehidom iz UF smole. γ-zračenjem je smanjen procenat oslobođenog formaldehida u svim ispitivanim modifikovanim UF smolama, posebno kod uzoraka smole sa TiO2  u količini od 100% u izosu od 0.25%. To se objašnjava činjenicom da kisela hidroliza nakon zračenja dovodi do dodatnog umrežavanja u svim uzorcima, što rezultuje „hvatanjem“ formaldehida u toku samog procesa hidrolize. Uzorci ispitivane kompozitne smole sa TiO2 /DB pokazuju lošiju hidrolitičku stabilnot zbog povećane interakcije između hidroksilnih i karbonilnih grupa u drvnom brašnu i hidroksilnih grupa sa površine TiO2 , zbog čega dolazi do smanjene interakcije hibridnog punila sa polimernom matricom odnosno smanjuje se procenat slobodnih grupa koje bi inače reagovale sa formaldehidom i smanjile njegovu emisiju iz smole.
PB  - Belgrade : Serbian Chemical Society
C3  - ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
T1  - Uticaj različitih doza γ-zračenja na hidrolitičku stabilnost modifikovanih urea-formaldehidnih (UF) smola
T1  - The influence of different doses of γ-radiation on the hydrolytic stability of modified urea-formaldehyde (UF) resins
SP  - 109
EP  - 110
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12692
ER  - 

@conference{
author = "Jovanović, Vojislav D. and Samaržija-Jovanović, Suzana and Jevtić, Sonja and Petković, Branka B. and Marković, Gordana S. and Marinović-Cincović, Milena",
year = "2018",
abstract = "Zbog emisije formaldehida (CH2 O) iz drvenih proizvoda, gde se urea- formaldehidne (UF) smole, između ostalog, koriste za impregnaciju drvenih panela koje se koriste u unutrašnjosti stambenih i drugih objekata poželjno je da procenat slobodnog formaldehida (CH2 O) u samoj smoli bude što manji, jer je poznato da formaldehid ima štetno dejstvo na čoveka, odnosno ceo živi svet. Pare formaldehida jako nadražuju disajne puteve. Koncentracije od 10-20 ppm otežavaju disanje, a koncentracije od 650 ppm mogu uzrokovati i smrt za samo nekoliko minuta. Često udisanje para niskih koncentracija mogu uzrokovati hronična oboljenja disajnih puteva. Simptomi i granice su individualni i javljaju se u širokim granicama izloženosti. Pojedine osobe mogu da osete simptome, kao što su iritacija očiju, grla, umor, glavobolja i mučnina, usled izloženosti i niskoj koncentaciji formaldehida (0.1 do 1 ppm). Osim slobodnog formaldehida, u samoj smoli, koji se spontano emituje, zbog niske otpornosti na vlagu, može doći do hidrolize UF smole što podrazumeva raskidanje samih veza u smoli (metilenetarskih) i dodatne emisije formaldehida u okolinu [1,2]. U ovom radu je ispitivana hidrolitička stabilnost modifikovanih UF smola sa “hvatačima” formaldehida, TiO2  sa različitim sadržajem (3,75 g i 7,25 g) u UF smoli i kombinacijom TiO2  i drvnog brašna (TiO2 /DB) u ekvimolarnim količinama. Tri modifikovane UF smole s odnosom formaldehida i uree (F/U) 0.8 s modifikovanim punilima su sintetizovani istim postupkom [3]. Hidrolitička stabilnost ispitivanih modifikovanih UF smola je određivana merenjem koncentracije oslobođenog formaldehida [4] iz modifikovane UF smole nakon kisele hidrolize. Zračenje sintetisanih modifikovanih smola je vršeno u vazdušnoj atmosferi u Co-60 radijacionoj jedinici na Institutu za nuklearne nauke, Vinča, Srbija. Uzorci smola su zračeni γ–zračenjem na sobnoj temperaturi i ukupnom apsorbovanom dozom od 50 kGy i 100 kGy [5]. Pre zračenja najmanji procenat slobodnog formaldehida (0.06%) imaju uzorci koji su modifikovani TiO2 . Usled γ-zračenja dolazi do degradacije makromolekula što uzrokuje povećanje slobodnog formaldehida u zračenim uzorcima u odnosu na nezračene. Povećanje doze zračenja sa 50 kGy na 100 kGy dovodi do smanjenja količine slobodnog formaldehida u umreženoj UF smoli. Najmanji procenat slobodnog formaldehida nakon zračenja sa ukupnom apsorbovanom dozom od 100 kGy nalazi se u UF smoli koja sadrži 100% TiO2 u količini od 0.12%. S druge strane i drvno brašno koje sadrži celulozu i hemicelulozu ima veliki broj hidroksilnih grupa, takođe reaguje sa slobodnim formaldehidom iz UF smole. γ-zračenjem je smanjen procenat oslobođenog formaldehida u svim ispitivanim modifikovanim UF smolama, posebno kod uzoraka smole sa TiO2  u količini od 100% u izosu od 0.25%. To se objašnjava činjenicom da kisela hidroliza nakon zračenja dovodi do dodatnog umrežavanja u svim uzorcima, što rezultuje „hvatanjem“ formaldehida u toku samog procesa hidrolize. Uzorci ispitivane kompozitne smole sa TiO2 /DB pokazuju lošiju hidrolitičku stabilnot zbog povećane interakcije između hidroksilnih i karbonilnih grupa u drvnom brašnu i hidroksilnih grupa sa površine TiO2 , zbog čega dolazi do smanjene interakcije hibridnog punila sa polimernom matricom odnosno smanjuje se procenat slobodnih grupa koje bi inače reagovale sa formaldehidom i smanjile njegovu emisiju iz smole.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts",
title = "Uticaj različitih doza γ-zračenja na hidrolitičku stabilnost modifikovanih urea-formaldehidnih (UF) smola, The influence of different doses of γ-radiation on the hydrolytic stability of modified urea-formaldehyde (UF) resins",
pages = "109-110",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12692"
}

Jovanović, V. D., Samaržija-Jovanović, S., Jevtić, S., Petković, B. B., Marković, G. S.,& Marinović-Cincović, M.. (2018). Uticaj različitih doza γ-zračenja na hidrolitičku stabilnost modifikovanih urea-formaldehidnih (UF) smola. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
Belgrade : Serbian Chemical Society., 109-110.
https://hdl.handle.net/21.15107/rcub_vinar_12692

Jovanović VD, Samaržija-Jovanović S, Jevtić S, Petković BB, Marković GS, Marinović-Cincović M. Uticaj različitih doza γ-zračenja na hidrolitičku stabilnost modifikovanih urea-formaldehidnih (UF) smola. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts. 2018;:109-110.
https://hdl.handle.net/21.15107/rcub_vinar_12692 .

Jovanović, Vojislav D., Samaržija-Jovanović, Suzana, Jevtić, Sonja, Petković, Branka B., Marković, Gordana S., Marinović-Cincović, Milena, "Uticaj različitih doza γ-zračenja na hidrolitičku stabilnost modifikovanih urea-formaldehidnih (UF) smola" in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts (2018):109-110,
https://hdl.handle.net/21.15107/rcub_vinar_12692 .

TY  - CONF
AU  - Budinski-Simendić, Jaroslava
AU  - Marinović-Cincović, Milena
AU  - Kojić, Dejan
AU  - Marković, Gordana
AU  - Pavličević, Jelena
AU  - Aroguz, Ayse
AU  - Samaržija-Jovanović, Suzana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11191
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2018 : 6th International Conference on Radiation in Various Fields of Research : book of abstracts; June 18-22, 2018; Ohrid, Macedonia
T1  - Determination of glass transition temperature and irradiation resistance of elastomeric materials based on chlorinated natural rubber
SP  - 255
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11191
ER  - 

@conference{
author = "Budinski-Simendić, Jaroslava and Marinović-Cincović, Milena and Kojić, Dejan and Marković, Gordana and Pavličević, Jelena and Aroguz, Ayse and Samaržija-Jovanović, Suzana",
year = "2018",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2018 : 6th International Conference on Radiation in Various Fields of Research : book of abstracts; June 18-22, 2018; Ohrid, Macedonia",
title = "Determination of glass transition temperature and irradiation resistance of elastomeric materials based on chlorinated natural rubber",
pages = "255",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11191"
}

Budinski-Simendić, J., Marinović-Cincović, M., Kojić, D., Marković, G., Pavličević, J., Aroguz, A.,& Samaržija-Jovanović, S.. (2018). Determination of glass transition temperature and irradiation resistance of elastomeric materials based on chlorinated natural rubber. in RAD 2018 : 6th International Conference on Radiation in Various Fields of Research : book of abstracts; June 18-22, 2018; Ohrid, Macedonia
RAD Centre, Niš, Serbia., 255.
https://hdl.handle.net/21.15107/rcub_vinar_11191

Budinski-Simendić J, Marinović-Cincović M, Kojić D, Marković G, Pavličević J, Aroguz A, Samaržija-Jovanović S. Determination of glass transition temperature and irradiation resistance of elastomeric materials based on chlorinated natural rubber. in RAD 2018 : 6th International Conference on Radiation in Various Fields of Research : book of abstracts; June 18-22, 2018; Ohrid, Macedonia. 2018;:255.
https://hdl.handle.net/21.15107/rcub_vinar_11191 .

Budinski-Simendić, Jaroslava, Marinović-Cincović, Milena, Kojić, Dejan, Marković, Gordana, Pavličević, Jelena, Aroguz, Ayse, Samaržija-Jovanović, Suzana, "Determination of glass transition temperature and irradiation resistance of elastomeric materials based on chlorinated natural rubber" in RAD 2018 : 6th International Conference on Radiation in Various Fields of Research : book of abstracts; June 18-22, 2018; Ohrid, Macedonia (2018):255,
https://hdl.handle.net/21.15107/rcub_vinar_11191 .

TY  - JOUR
AU  - Jovanović, Slaviša
AU  - Jovanović, Vojislav
AU  - Marković, Gordana
AU  - Samaržija-Jovanović, Suzana
AU  - Milićević, Zoran
AU  - Marinović-Cincović, Milena
AU  - Budinski-Simendić, Jaroslava K.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8362
AB  - The elastomeric materials based on NR/BR/SBR ternary rubber blend were investigated. The polyisoprene (NR), butadiene (BR) and styrene butadiene (SBR) rubbers were used as network precursors and carbon black (CB) as an active filler (60 phr) for elastomeric materials preparation. For sample preparation, the mass ratio of NR to BR was constant, 1:1, but the SBR content was varied from 0 to 80 phr. The morphological, mechanical and thermal properties of prepared elastomeric materials were determined using scanning electron microscopy (SEM), mechanical tensile measurements and thermogravimetric analysis (TGA). Mechanical properties were assessed before and after thermooxidative aging during 168 h at 100 °C. The values of tensile strength, elongation at break, and hardness decrease up to 40 phr of SBR content and after that are increasing, but abrasion resistance of ternary rubber blends increases. The thermal decomposition temperature obviously shifted to a higher temperature for the sample with 40 phr of SBR. © 2019, CI and CEQ. All rights reserved.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Elastomers based on NR/BR/SBR ternary rubber blend: Morphological, mechanical and thermal properties
VL  - 25
IS  - 1
SP  - 31
EP  - 38
DO  - 10.2298/CICEQ171106016J
ER  - 

@article{
author = "Jovanović, Slaviša and Jovanović, Vojislav and Marković, Gordana and Samaržija-Jovanović, Suzana and Milićević, Zoran and Marinović-Cincović, Milena and Budinski-Simendić, Jaroslava K.",
year = "2018",
abstract = "The elastomeric materials based on NR/BR/SBR ternary rubber blend were investigated. The polyisoprene (NR), butadiene (BR) and styrene butadiene (SBR) rubbers were used as network precursors and carbon black (CB) as an active filler (60 phr) for elastomeric materials preparation. For sample preparation, the mass ratio of NR to BR was constant, 1:1, but the SBR content was varied from 0 to 80 phr. The morphological, mechanical and thermal properties of prepared elastomeric materials were determined using scanning electron microscopy (SEM), mechanical tensile measurements and thermogravimetric analysis (TGA). Mechanical properties were assessed before and after thermooxidative aging during 168 h at 100 °C. The values of tensile strength, elongation at break, and hardness decrease up to 40 phr of SBR content and after that are increasing, but abrasion resistance of ternary rubber blends increases. The thermal decomposition temperature obviously shifted to a higher temperature for the sample with 40 phr of SBR. © 2019, CI and CEQ. All rights reserved.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Elastomers based on NR/BR/SBR ternary rubber blend: Morphological, mechanical and thermal properties",
volume = "25",
number = "1",
pages = "31-38",
doi = "10.2298/CICEQ171106016J"
}

Jovanović, S., Jovanović, V., Marković, G., Samaržija-Jovanović, S., Milićević, Z., Marinović-Cincović, M.,& Budinski-Simendić, J. K.. (2018). Elastomers based on NR/BR/SBR ternary rubber blend: Morphological, mechanical and thermal properties. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 25(1), 31-38.
https://doi.org/10.2298/CICEQ171106016J

Jovanović S, Jovanović V, Marković G, Samaržija-Jovanović S, Milićević Z, Marinović-Cincović M, Budinski-Simendić JK. Elastomers based on NR/BR/SBR ternary rubber blend: Morphological, mechanical and thermal properties. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2018;25(1):31-38.
doi:10.2298/CICEQ171106016J .

Jovanović, Slaviša, Jovanović, Vojislav, Marković, Gordana, Samaržija-Jovanović, Suzana, Milićević, Zoran, Marinović-Cincović, Milena, Budinski-Simendić, Jaroslava K., "Elastomers based on NR/BR/SBR ternary rubber blend: Morphological, mechanical and thermal properties" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 25, no. 1 (2018):31-38,
https://doi.org/10.2298/CICEQ171106016J . .

TY  - JOUR
AU  - Jovanović, Slaviša
AU  - Samaržija-Jovanović, Suzana
AU  - Marković, Gordana
AU  - Jovanović, Vojislav
AU  - Adamović, Tijana
AU  - Marinović-Cincović, Milena
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1900
AB  - The goal of this work was to synthesize and characterize ternary rubber blends based on polyisoprene (natural rubber (NR)), polybutadiene rubber (BR), and styrene-butadiene rubber (SBR) (NR/BR/SBR = 25/25/50) reinforced with different loading silica (SiO2) nanoparticles (0-100 part per hundred parts of rubber (phr)). The specimens were subjected to thermooxidative aging at 100 degrees C, for two times: at 72 and 168 h, respectively, and then mechanically stretched to fracture by tension with a Zwick 1425 (Zwick GmbH, Ulm, Germany) universal tensile testing machine. Rheological and mechanical properties were used as characterization of the ternary rubber blends. The reinforcing performance of the filler was investigated using rheometric, mechanical, and swelling measurements, thermogravimetric analysis, scanning electron microscopy, and Fourier transform infrared spectroscopy with attenuated total reflectance. Hardness, tensile strength, elongation at break, and swelling degree were assessed before and after thermal aging. There was a remarkable decrease in the optimum cure time (t(c90)) and the scorch time (t(s2)), which was associated with a decrease in the cure rate index of (NR/BR/SBR = 25/25/50) ternary rubber blend with 60 phr of filler loading. Interaction between rubber blend and SiO2 nano-filler is confirmed by moving absorption band from 1450 cm(-1) to 1480 cm(-1).
T2  - Journal of Thermoplastic Composite Materials
T1  - Ternary NR/BR/SBR rubber blend nanocomposites
VL  - 31
IS  - 2
SP  - 265
EP  - 287
DO  - 10.1177/0892705717697778
ER  - 

@article{
author = "Jovanović, Slaviša and Samaržija-Jovanović, Suzana and Marković, Gordana and Jovanović, Vojislav and Adamović, Tijana and Marinović-Cincović, Milena",
year = "2018",
abstract = "The goal of this work was to synthesize and characterize ternary rubber blends based on polyisoprene (natural rubber (NR)), polybutadiene rubber (BR), and styrene-butadiene rubber (SBR) (NR/BR/SBR = 25/25/50) reinforced with different loading silica (SiO2) nanoparticles (0-100 part per hundred parts of rubber (phr)). The specimens were subjected to thermooxidative aging at 100 degrees C, for two times: at 72 and 168 h, respectively, and then mechanically stretched to fracture by tension with a Zwick 1425 (Zwick GmbH, Ulm, Germany) universal tensile testing machine. Rheological and mechanical properties were used as characterization of the ternary rubber blends. The reinforcing performance of the filler was investigated using rheometric, mechanical, and swelling measurements, thermogravimetric analysis, scanning electron microscopy, and Fourier transform infrared spectroscopy with attenuated total reflectance. Hardness, tensile strength, elongation at break, and swelling degree were assessed before and after thermal aging. There was a remarkable decrease in the optimum cure time (t(c90)) and the scorch time (t(s2)), which was associated with a decrease in the cure rate index of (NR/BR/SBR = 25/25/50) ternary rubber blend with 60 phr of filler loading. Interaction between rubber blend and SiO2 nano-filler is confirmed by moving absorption band from 1450 cm(-1) to 1480 cm(-1).",
journal = "Journal of Thermoplastic Composite Materials",
title = "Ternary NR/BR/SBR rubber blend nanocomposites",
volume = "31",
number = "2",
pages = "265-287",
doi = "10.1177/0892705717697778"
}

Jovanović, S., Samaržija-Jovanović, S., Marković, G., Jovanović, V., Adamović, T.,& Marinović-Cincović, M.. (2018). Ternary NR/BR/SBR rubber blend nanocomposites. in Journal of Thermoplastic Composite Materials, 31(2), 265-287.
https://doi.org/10.1177/0892705717697778

Jovanović S, Samaržija-Jovanović S, Marković G, Jovanović V, Adamović T, Marinović-Cincović M. Ternary NR/BR/SBR rubber blend nanocomposites. in Journal of Thermoplastic Composite Materials. 2018;31(2):265-287.
doi:10.1177/0892705717697778 .

Jovanović, Slaviša, Samaržija-Jovanović, Suzana, Marković, Gordana, Jovanović, Vojislav, Adamović, Tijana, Marinović-Cincović, Milena, "Ternary NR/BR/SBR rubber blend nanocomposites" in Journal of Thermoplastic Composite Materials, 31, no. 2 (2018):265-287,
https://doi.org/10.1177/0892705717697778 . .

TY  - CONF
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Jovanović, Vojislav
AU  - Marinović-Cincović, Milena
AU  - Samaržija-Jovanović, Suzana
AU  - Kojić, Dejan
AU  - Budinski-Simendić, Jaroslava
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11197
PB  - RAD Association, Niš, Serbia
C3  - RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro
T1  - Irradiation resistance of elastomers based on ternary rubber blends reinforced by nano filler
SP  - 181
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11197
ER  - 

@conference{
author = "Jovanović, Slaviša and Marković, Gordana and Jovanović, Vojislav and Marinović-Cincović, Milena and Samaržija-Jovanović, Suzana and Kojić, Dejan and Budinski-Simendić, Jaroslava",
year = "2017",
publisher = "RAD Association, Niš, Serbia",
journal = "RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro",
title = "Irradiation resistance of elastomers based on ternary rubber blends reinforced by nano filler",
pages = "181",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11197"
}

Jovanović, S., Marković, G., Jovanović, V., Marinović-Cincović, M., Samaržija-Jovanović, S., Kojić, D.,& Budinski-Simendić, J.. (2017). Irradiation resistance of elastomers based on ternary rubber blends reinforced by nano filler. in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro
RAD Association, Niš, Serbia., 181.
https://hdl.handle.net/21.15107/rcub_vinar_11197

Jovanović S, Marković G, Jovanović V, Marinović-Cincović M, Samaržija-Jovanović S, Kojić D, Budinski-Simendić J. Irradiation resistance of elastomers based on ternary rubber blends reinforced by nano filler. in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro. 2017;:181.
https://hdl.handle.net/21.15107/rcub_vinar_11197 .

Jovanović, Slaviša, Marković, Gordana, Jovanović, Vojislav, Marinović-Cincović, Milena, Samaržija-Jovanović, Suzana, Kojić, Dejan, Budinski-Simendić, Jaroslava, "Irradiation resistance of elastomers based on ternary rubber blends reinforced by nano filler" in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro (2017):181,
https://hdl.handle.net/21.15107/rcub_vinar_11197 .

TY  - CONF
AU  - Marinović-Cincović, Milena
AU  - Budinski-Simendić, Jaroslava
AU  - Aroguz, Ayse
AU  - Teofilović, Vesna
AU  - Jovanović, Vojislav
AU  - Marković, Gordana
AU  - Samaržija-Jovanović, Suzana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11198
PB  - RAD Association, Niš, Serbia
C3  - RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro
T1  - Gamma irradiation ageing study of elastomers based on ethylene/propylene/5-ethylidene-2-norbornene rubber
SP  - 182
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11198
ER  - 

@conference{
author = "Marinović-Cincović, Milena and Budinski-Simendić, Jaroslava and Aroguz, Ayse and Teofilović, Vesna and Jovanović, Vojislav and Marković, Gordana and Samaržija-Jovanović, Suzana",
year = "2017",
publisher = "RAD Association, Niš, Serbia",
journal = "RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro",
title = "Gamma irradiation ageing study of elastomers based on ethylene/propylene/5-ethylidene-2-norbornene rubber",
pages = "182",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11198"
}

Marinović-Cincović, M., Budinski-Simendić, J., Aroguz, A., Teofilović, V., Jovanović, V., Marković, G.,& Samaržija-Jovanović, S.. (2017). Gamma irradiation ageing study of elastomers based on ethylene/propylene/5-ethylidene-2-norbornene rubber. in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro
RAD Association, Niš, Serbia., 182.
https://hdl.handle.net/21.15107/rcub_vinar_11198

Marinović-Cincović M, Budinski-Simendić J, Aroguz A, Teofilović V, Jovanović V, Marković G, Samaržija-Jovanović S. Gamma irradiation ageing study of elastomers based on ethylene/propylene/5-ethylidene-2-norbornene rubber. in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro. 2017;:182.
https://hdl.handle.net/21.15107/rcub_vinar_11198 .

Marinović-Cincović, Milena, Budinski-Simendić, Jaroslava, Aroguz, Ayse, Teofilović, Vesna, Jovanović, Vojislav, Marković, Gordana, Samaržija-Jovanović, Suzana, "Gamma irradiation ageing study of elastomers based on ethylene/propylene/5-ethylidene-2-norbornene rubber" in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro (2017):182,
https://hdl.handle.net/21.15107/rcub_vinar_11198 .

TY  - CONF
AU  - Kojić, Dejan
AU  - Marković, Gordana
AU  - Jovanović, Vojislav
AU  - Marinović-Cincović, Milena
AU  - Erceg, Tamara
AU  - Samaržija-Jovanović, Suzana
AU  - Budinski-Simendić, Jaroslava
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11200
PB  - RAD Association, Niš, Serbia
C3  - RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro
T1  - Thermal degradation of gamma irradiated elastomers based on different network precursors
SP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11200
ER  - 

@conference{
author = "Kojić, Dejan and Marković, Gordana and Jovanović, Vojislav and Marinović-Cincović, Milena and Erceg, Tamara and Samaržija-Jovanović, Suzana and Budinski-Simendić, Jaroslava",
year = "2017",
publisher = "RAD Association, Niš, Serbia",
journal = "RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro",
title = "Thermal degradation of gamma irradiated elastomers based on different network precursors",
pages = "199",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11200"
}

Kojić, D., Marković, G., Jovanović, V., Marinović-Cincović, M., Erceg, T., Samaržija-Jovanović, S.,& Budinski-Simendić, J.. (2017). Thermal degradation of gamma irradiated elastomers based on different network precursors. in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro
RAD Association, Niš, Serbia., 199.
https://hdl.handle.net/21.15107/rcub_vinar_11200

Kojić D, Marković G, Jovanović V, Marinović-Cincović M, Erceg T, Samaržija-Jovanović S, Budinski-Simendić J. Thermal degradation of gamma irradiated elastomers based on different network precursors. in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro. 2017;:199.
https://hdl.handle.net/21.15107/rcub_vinar_11200 .

Kojić, Dejan, Marković, Gordana, Jovanović, Vojislav, Marinović-Cincović, Milena, Erceg, Tamara, Samaržija-Jovanović, Suzana, Budinski-Simendić, Jaroslava, "Thermal degradation of gamma irradiated elastomers based on different network precursors" in RAD 2017 : 5th International Conference on Radiation in Various Fields of Research : book of abstracts; June 12-16, 2017; Budva, Montenegro (2017):199,
https://hdl.handle.net/21.15107/rcub_vinar_11200 .

TY  - CONF
AU  - Marković, Gordana
AU  - Marinović-Cincović, Milena
AU  - Jovanović, Vojislav
AU  - Samaržija-Jovanović, Suzana
AU  - Tanasic, Ljiljana
AU  - Radičević, Radmila
AU  - Budinski-Simendić, Jaroslava K.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7170
AB  - Elastomers are very often used in severe environments, for instance, in nuclear power plants, where they may be degraded by high-energy radiation and heat. The ageing behaviour of materials used in different equipments is very important. Elastomers based on chlorosulfonated polyethylene (CSM) are used for cable jacketing materials and have excellent radiation resistance needed in nuclear power stations. In the current work, the influence of gamma-irradiation dose (100, 200 and 400 kGy) on the ageing of reinforced blends based on CSM, styrene butadiene rubber (SBR) and natural rubber (NR) has been evaluated. The content of silica in CSM/SBR and CSM/NR rubber blends was varied. The curing behavior of compounds was estimated using the oscillating disk reometer. The irradiation of nano composites has been performed in air in the Co 60 radiation sterilization unit with the dose rate of 10 kGy h(-1). The thermal properties were studied by thermogravimetric test. The mechanical properties (hardness, modulus at 100% elongation, tensile strength and elongation at break) were determined before and after irradiation. A decrease in the elastic modulus and in the strain at break has been observed with increasing irradiation. At higher doses, the network chain scissions become the main degradation process, the cross-linked topology becomes irregular, and material contains more and more weak zones, which deteriorate the ultimate properties.
C3  - RAD Conference Proceedings
T1  - The High-Energy Irradiation Ageing of Reinforced Elastomers Based on Rubber Blends
SP  - 99
EP  - 102
DO  - 10.21175/RadProc.2016.23
ER  - 

@conference{
author = "Marković, Gordana and Marinović-Cincović, Milena and Jovanović, Vojislav and Samaržija-Jovanović, Suzana and Tanasic, Ljiljana and Radičević, Radmila and Budinski-Simendić, Jaroslava K.",
year = "2016",
abstract = "Elastomers are very often used in severe environments, for instance, in nuclear power plants, where they may be degraded by high-energy radiation and heat. The ageing behaviour of materials used in different equipments is very important. Elastomers based on chlorosulfonated polyethylene (CSM) are used for cable jacketing materials and have excellent radiation resistance needed in nuclear power stations. In the current work, the influence of gamma-irradiation dose (100, 200 and 400 kGy) on the ageing of reinforced blends based on CSM, styrene butadiene rubber (SBR) and natural rubber (NR) has been evaluated. The content of silica in CSM/SBR and CSM/NR rubber blends was varied. The curing behavior of compounds was estimated using the oscillating disk reometer. The irradiation of nano composites has been performed in air in the Co 60 radiation sterilization unit with the dose rate of 10 kGy h(-1). The thermal properties were studied by thermogravimetric test. The mechanical properties (hardness, modulus at 100% elongation, tensile strength and elongation at break) were determined before and after irradiation. A decrease in the elastic modulus and in the strain at break has been observed with increasing irradiation. At higher doses, the network chain scissions become the main degradation process, the cross-linked topology becomes irregular, and material contains more and more weak zones, which deteriorate the ultimate properties.",
journal = "RAD Conference Proceedings",
title = "The High-Energy Irradiation Ageing of Reinforced Elastomers Based on Rubber Blends",
pages = "99-102",
doi = "10.21175/RadProc.2016.23"
}

Marković, G., Marinović-Cincović, M., Jovanović, V., Samaržija-Jovanović, S., Tanasic, L., Radičević, R.,& Budinski-Simendić, J. K.. (2016). The High-Energy Irradiation Ageing of Reinforced Elastomers Based on Rubber Blends. in RAD Conference Proceedings, 99-102.
https://doi.org/10.21175/RadProc.2016.23

Marković G, Marinović-Cincović M, Jovanović V, Samaržija-Jovanović S, Tanasic L, Radičević R, Budinski-Simendić JK. The High-Energy Irradiation Ageing of Reinforced Elastomers Based on Rubber Blends. in RAD Conference Proceedings. 2016;:99-102.
doi:10.21175/RadProc.2016.23 .

Marković, Gordana, Marinović-Cincović, Milena, Jovanović, Vojislav, Samaržija-Jovanović, Suzana, Tanasic, Ljiljana, Radičević, Radmila, Budinski-Simendić, Jaroslava K., "The High-Energy Irradiation Ageing of Reinforced Elastomers Based on Rubber Blends" in RAD Conference Proceedings (2016):99-102,
https://doi.org/10.21175/RadProc.2016.23 . .