Radičević, Radmila

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  • Radičević, Radmila (2)
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Author's Bibliography

Influence of different functionalization methods of multi-walled carbon nanotubes on the properties of poly(L-lactide) based nanocomposites

Vukić, Nevena; Ristić, Ivan; Marinović-Cincović, Milena; Radičević, Radmila; Pilić, Branka; Cakić, Suzana; Budinski-Simendić, Jaroslava K.

(2019)

TY  - JOUR
AU  - Vukić, Nevena
AU  - Ristić, Ivan
AU  - Marinović-Cincović, Milena
AU  - Radičević, Radmila
AU  - Pilić, Branka
AU  - Cakić, Suzana
AU  - Budinski-Simendić, Jaroslava K.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10335
AB  - This paper presents influence of the type of carbon nanotube functionalization on properties of poly(L-lactide) (PLLA) based nanocomposite materials. For this purpose surface modifications of multi-walled carbon nanotubes (MWCNTs) were performed by chemical and irradiation techniques, while thermo gravimetric analysis, UV-Visible and Fourier-transform infrared (FT-IR) spectroscopies confirmed successful covalent functionalization. Series of PLLA bionanocom-posites with different contents of functionalized MWCNTs (0.7; 1.6; 2.1 wt%), were synthesized via ring-opening solution polymerisation of L-lactide. FT-IR analysis confirmed that grafting of L-lactide, under controlled condition, is possible to perform starting from the surface of functionalized MWCNTs. From differential scanning calorimetry results it was concluded that even low contents of chemically and irradiation functionalized MWCNTs had a significant effect on thermal properties of the prepared nanocomposites, raising the values of melting and glass transition temperatures. Thermogravimetric analysis (TGA) has shown that the degradation onset temperature for composites with chemically functionalized MWCNTs, was much higher than that for the neat poly(L-lactide) sample and composites with irradiation functionalized MWCNTs. Morphology studies by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) indicated that poly(L-lactide) covered surfaces and separated functionalized MWCNTs. Good dispersion of carbon nanotubes in polymer matrix enabled conductivity of synthesized materials, as determined by conductivity tests.
T2  - Hemijska industrija
T1  - Influence of different functionalization methods of multi-walled carbon nanotubes on the properties of poly(L-lactide) based nanocomposites
VL  - 73
IS  - 3
SP  - 183
EP  - 196
DO  - 10.2298/HEMIND190402016V
ER  - 
@article{
author = "Vukić, Nevena and Ristić, Ivan and Marinović-Cincović, Milena and Radičević, Radmila and Pilić, Branka and Cakić, Suzana and Budinski-Simendić, Jaroslava K.",
year = "2019",
abstract = "This paper presents influence of the type of carbon nanotube functionalization on properties of poly(L-lactide) (PLLA) based nanocomposite materials. For this purpose surface modifications of multi-walled carbon nanotubes (MWCNTs) were performed by chemical and irradiation techniques, while thermo gravimetric analysis, UV-Visible and Fourier-transform infrared (FT-IR) spectroscopies confirmed successful covalent functionalization. Series of PLLA bionanocom-posites with different contents of functionalized MWCNTs (0.7; 1.6; 2.1 wt%), were synthesized via ring-opening solution polymerisation of L-lactide. FT-IR analysis confirmed that grafting of L-lactide, under controlled condition, is possible to perform starting from the surface of functionalized MWCNTs. From differential scanning calorimetry results it was concluded that even low contents of chemically and irradiation functionalized MWCNTs had a significant effect on thermal properties of the prepared nanocomposites, raising the values of melting and glass transition temperatures. Thermogravimetric analysis (TGA) has shown that the degradation onset temperature for composites with chemically functionalized MWCNTs, was much higher than that for the neat poly(L-lactide) sample and composites with irradiation functionalized MWCNTs. Morphology studies by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) indicated that poly(L-lactide) covered surfaces and separated functionalized MWCNTs. Good dispersion of carbon nanotubes in polymer matrix enabled conductivity of synthesized materials, as determined by conductivity tests.",
journal = "Hemijska industrija",
title = "Influence of different functionalization methods of multi-walled carbon nanotubes on the properties of poly(L-lactide) based nanocomposites",
volume = "73",
number = "3",
pages = "183-196",
doi = "10.2298/HEMIND190402016V"
}
Vukić, N., Ristić, I., Marinović-Cincović, M., Radičević, R., Pilić, B., Cakić, S.,& Budinski-Simendić, J. K.. (2019). Influence of different functionalization methods of multi-walled carbon nanotubes on the properties of poly(L-lactide) based nanocomposites. in Hemijska industrija, 73(3), 183-196.
https://doi.org/10.2298/HEMIND190402016V
Vukić N, Ristić I, Marinović-Cincović M, Radičević R, Pilić B, Cakić S, Budinski-Simendić JK. Influence of different functionalization methods of multi-walled carbon nanotubes on the properties of poly(L-lactide) based nanocomposites. in Hemijska industrija. 2019;73(3):183-196.
doi:10.2298/HEMIND190402016V .
Vukić, Nevena, Ristić, Ivan, Marinović-Cincović, Milena, Radičević, Radmila, Pilić, Branka, Cakić, Suzana, Budinski-Simendić, Jaroslava K., "Influence of different functionalization methods of multi-walled carbon nanotubes on the properties of poly(L-lactide) based nanocomposites" in Hemijska industrija, 73, no. 3 (2019):183-196,
https://doi.org/10.2298/HEMIND190402016V . .
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The High-Energy Irradiation Ageing of Reinforced Elastomers Based on Rubber Blends

Marković, Gordana; Marinović-Cincović, Milena; Jovanović, Vojislav; Samaržija-Jovanović, Suzana; Tanasic, Ljiljana; Radičević, Radmila; Budinski-Simendić, Jaroslava K.

(2016)

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 . .
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