TY  - JOUR
AU  - Godiya, Chirag B.
AU  - Marcantoni, Enrico
AU  - Dunjić, Branko
AU  - Tomić, Miloš
AU  - Nikolić, Marija
AU  - Maletaškić, Jelena
AU  - Đonlagić, Jasna
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13115
AB  - Poly(methyl methacrylate) (PMMA)/clay nanocomposites (NCs) were prepared by suspension polymerization of methyl methacrylate in the presence of two different organoclays (Cloisite 30B, Cloisite 15A) with clay loading ranged from 0.5 to 5 wt%. Increase in molecular weight of the PMMA matrix with addition of the clay was revealed by gel permeation chromatography (GPC) and intrinsic viscosity measurements. As confirmed by X-ray diffraction (XRD), the NCs had an intercalated structure. The organoclays-MMA/PMMA compatibility was investigated by swelling tests and solubility parameter approach. Rheological behavior of PMMA NCs in molten state was analyzed through construction of master curves of complex viscosity, storage, and loss modulus by applying the time-temperature superposition procedure. Melt rheology, scanning electron microscopy (SEM), and UV/Vis spectroscopy results confirmed higher extent of clay dispersion in the NCs with Cloisite 30B. Compared to pure PMMA, all these NCs show increase of glass transition temperature as measured by DSC and improved thermal stability determined by thermogravimetric analysis (TGA). The results obtained by dynamic mechanical analysis showed that the storage modulus of the NCs was higher by incorporation of clay into the PMMA matrix, increasing as the amount of clay increased and that their mechanical performance was significantly enhanced.
T2  - Polymer Bulletin
T1  - Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites
VL  - 78
IS  - 6
SP  - 2911
EP  - 2932
DO  - 10.1007/s00289-020-03248-7
ER  - 

@article{
author = "Godiya, Chirag B. and Marcantoni, Enrico and Dunjić, Branko and Tomić, Miloš and Nikolić, Marija and Maletaškić, Jelena and Đonlagić, Jasna",
year = "2021",
abstract = "Poly(methyl methacrylate) (PMMA)/clay nanocomposites (NCs) were prepared by suspension polymerization of methyl methacrylate in the presence of two different organoclays (Cloisite 30B, Cloisite 15A) with clay loading ranged from 0.5 to 5 wt%. Increase in molecular weight of the PMMA matrix with addition of the clay was revealed by gel permeation chromatography (GPC) and intrinsic viscosity measurements. As confirmed by X-ray diffraction (XRD), the NCs had an intercalated structure. The organoclays-MMA/PMMA compatibility was investigated by swelling tests and solubility parameter approach. Rheological behavior of PMMA NCs in molten state was analyzed through construction of master curves of complex viscosity, storage, and loss modulus by applying the time-temperature superposition procedure. Melt rheology, scanning electron microscopy (SEM), and UV/Vis spectroscopy results confirmed higher extent of clay dispersion in the NCs with Cloisite 30B. Compared to pure PMMA, all these NCs show increase of glass transition temperature as measured by DSC and improved thermal stability determined by thermogravimetric analysis (TGA). The results obtained by dynamic mechanical analysis showed that the storage modulus of the NCs was higher by incorporation of clay into the PMMA matrix, increasing as the amount of clay increased and that their mechanical performance was significantly enhanced.",
journal = "Polymer Bulletin",
title = "Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites",
volume = "78",
number = "6",
pages = "2911-2932",
doi = "10.1007/s00289-020-03248-7"
}

Godiya, C. B., Marcantoni, E., Dunjić, B., Tomić, M., Nikolić, M., Maletaškić, J.,& Đonlagić, J.. (2021). Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites. in Polymer Bulletin, 78(6), 2911-2932.
https://doi.org/10.1007/s00289-020-03248-7

Godiya CB, Marcantoni E, Dunjić B, Tomić M, Nikolić M, Maletaškić J, Đonlagić J. Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites. in Polymer Bulletin. 2021;78(6):2911-2932.
doi:10.1007/s00289-020-03248-7 .

Godiya, Chirag B., Marcantoni, Enrico, Dunjić, Branko, Tomić, Miloš, Nikolić, Marija, Maletaškić, Jelena, Đonlagić, Jasna, "Effect of organoclay modifier structure on the viscoelastic and thermal properties of poly(methyl methacrylate)/organoclay nanocomposites" in Polymer Bulletin, 78, no. 6 (2021):2911-2932,
https://doi.org/10.1007/s00289-020-03248-7 . .

TY  - JOUR
AU  - Mirković, Ilinka
AU  - Nikolić, Marija
AU  - Ostojić, Sanja
AU  - Maletaškić, Jelena
AU  - Petrović, Zoran
AU  - Đonlagić, Jasna
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9718
AB  - Semi-interpenetrating polymer networks (SIPN) based on thermo-responsive poly(N-isopropylacrylamide) (PNIPA) and water-soluble sodium salts of linear hyaluronic acid (Na-HA) were physically cross-linked with synthetic nanoclay (laponite XLG). PNIPA hydrogels with different cross-linking densities and Na-HA concentrations were synthesized by in situ free-radical redox polymerization. The structure and heterogeneity of the semi-IPN hydrogels were examined by SEM and XRD. The content of clay incorporated in the gel was determined by TGA. DSC measurements showed that volume phase transition temperature and its enthalpy varied with the clay and hyaluronic acid content. SIPN hydrogels containing negatively charged polyelectrolyte, Na-HA, exhibited higher Q(e) and faster deswelling rates than the corresponding PNIPA NC hydrogels. The presence of the anionic Na-HA polymer reduced the storage modulus, indicating a weakening of the hydrogel network structure, especially at lower clay contents. The nanocomposite hydrogels exhibited high tan delta values, which increased with increasing Na-HA content.
T2  - Journal of the Serbian Chemical Society
T1  - Thermo-responsive hydrogels based on poly(N-isopropyl- acrylamide) and hyaluronic acid cross-linked with nanoclays
VL  - 85
IS  - 9
SP  - 1197
EP  - 1221
DO  - 10.2298/JSC200109023M
ER  - 

@article{
author = "Mirković, Ilinka and Nikolić, Marija and Ostojić, Sanja and Maletaškić, Jelena and Petrović, Zoran and Đonlagić, Jasna",
year = "2020",
abstract = "Semi-interpenetrating polymer networks (SIPN) based on thermo-responsive poly(N-isopropylacrylamide) (PNIPA) and water-soluble sodium salts of linear hyaluronic acid (Na-HA) were physically cross-linked with synthetic nanoclay (laponite XLG). PNIPA hydrogels with different cross-linking densities and Na-HA concentrations were synthesized by in situ free-radical redox polymerization. The structure and heterogeneity of the semi-IPN hydrogels were examined by SEM and XRD. The content of clay incorporated in the gel was determined by TGA. DSC measurements showed that volume phase transition temperature and its enthalpy varied with the clay and hyaluronic acid content. SIPN hydrogels containing negatively charged polyelectrolyte, Na-HA, exhibited higher Q(e) and faster deswelling rates than the corresponding PNIPA NC hydrogels. The presence of the anionic Na-HA polymer reduced the storage modulus, indicating a weakening of the hydrogel network structure, especially at lower clay contents. The nanocomposite hydrogels exhibited high tan delta values, which increased with increasing Na-HA content.",
journal = "Journal of the Serbian Chemical Society",
title = "Thermo-responsive hydrogels based on poly(N-isopropyl- acrylamide) and hyaluronic acid cross-linked with nanoclays",
volume = "85",
number = "9",
pages = "1197-1221",
doi = "10.2298/JSC200109023M"
}

Mirković, I., Nikolić, M., Ostojić, S., Maletaškić, J., Petrović, Z.,& Đonlagić, J.. (2020). Thermo-responsive hydrogels based on poly(N-isopropyl- acrylamide) and hyaluronic acid cross-linked with nanoclays. in Journal of the Serbian Chemical Society, 85(9), 1197-1221.
https://doi.org/10.2298/JSC200109023M

Mirković I, Nikolić M, Ostojić S, Maletaškić J, Petrović Z, Đonlagić J. Thermo-responsive hydrogels based on poly(N-isopropyl- acrylamide) and hyaluronic acid cross-linked with nanoclays. in Journal of the Serbian Chemical Society. 2020;85(9):1197-1221.
doi:10.2298/JSC200109023M .

Mirković, Ilinka, Nikolić, Marija, Ostojić, Sanja, Maletaškić, Jelena, Petrović, Zoran, Đonlagić, Jasna, "Thermo-responsive hydrogels based on poly(N-isopropyl- acrylamide) and hyaluronic acid cross-linked with nanoclays" in Journal of the Serbian Chemical Society, 85, no. 9 (2020):1197-1221,
https://doi.org/10.2298/JSC200109023M . .

TY  - JOUR
AU  - Tomić, Miloš
AU  - Dunjić, Branko
AU  - Nikolić, Marija S.
AU  - Trifković, Kata
AU  - Stanković, Nadežda
AU  - Pavlović, Vladimir B.
AU  - Bajat, Jelena B.
AU  - Đonlagić, Jasna A.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0300944018312487
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8076
AB  - In the present study the commercial multifunctional fatty acid polyamidoamine (PAA) was for the first time simultaneously applied as a curing agent and clay modifier for epoxy/clay nanocomposites (NC) based on diglycidyl ether of bisphenol A. The montmorillonite (Cloisite®Na + ) was modified with different quantities of partially and fully protonated polyamidoamine. The NCs with 0.5 wt% novel organoclay were prepared by solution intercalation method. The major aims of this paper are investigations of the effects of the composition of PAA modified clays on structure, mechanical, barrier properties and corrosion stability on steel substrates of NCs were studied. The thermogravimetric, flame photometry and X-ray diffraction analyses confirmed the efficient modification of clay surface with polyamidoamine, predominantly located within layers. The NCs exhibited an intercalated/exfoliated morphology and the presence of free amino groups and increased content of modifier facilitated dispersion of clay particles within the polymer matrix, as shown by electron microscopy techniques (SEM, TEM). Under an optimized loading of PAA (molar quantity of total amino groups per clay cation exchange capacity of 1.75), the layers in stacks were separated by 5.0 nm and high number of individual layers was present in NC. Clay modified by PAA with free amino groups showed increased storage modulus in the rubbery state, glass transition temperature of NCs, while dumping factor was decreased. The tensile test confirmed that introduction of flexible modifier on the epoxy/clay interface lead to increase in the ultimate tensile strenght and elongation at break by 31% and toughness up to 83%. The electrochemical impedance spectroscopy and permeability tests proved the pronounced barrier effect of clay particles against corrosive species and water vapor when high dispersion degree of clay in NC was achieved. © 2019 Elsevier B.V.
T2  - Progress in Organic Coatings
T1  - Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites
VL  - 131
SP  - 311
EP  - 321
DO  - 10.1016/j.porgcoat.2019.02.037
ER  - 

@article{
author = "Tomić, Miloš and Dunjić, Branko and Nikolić, Marija S. and Trifković, Kata and Stanković, Nadežda and Pavlović, Vladimir B. and Bajat, Jelena B. and Đonlagić, Jasna A.",
year = "2019",
abstract = "In the present study the commercial multifunctional fatty acid polyamidoamine (PAA) was for the first time simultaneously applied as a curing agent and clay modifier for epoxy/clay nanocomposites (NC) based on diglycidyl ether of bisphenol A. The montmorillonite (Cloisite®Na + ) was modified with different quantities of partially and fully protonated polyamidoamine. The NCs with 0.5 wt% novel organoclay were prepared by solution intercalation method. The major aims of this paper are investigations of the effects of the composition of PAA modified clays on structure, mechanical, barrier properties and corrosion stability on steel substrates of NCs were studied. The thermogravimetric, flame photometry and X-ray diffraction analyses confirmed the efficient modification of clay surface with polyamidoamine, predominantly located within layers. The NCs exhibited an intercalated/exfoliated morphology and the presence of free amino groups and increased content of modifier facilitated dispersion of clay particles within the polymer matrix, as shown by electron microscopy techniques (SEM, TEM). Under an optimized loading of PAA (molar quantity of total amino groups per clay cation exchange capacity of 1.75), the layers in stacks were separated by 5.0 nm and high number of individual layers was present in NC. Clay modified by PAA with free amino groups showed increased storage modulus in the rubbery state, glass transition temperature of NCs, while dumping factor was decreased. The tensile test confirmed that introduction of flexible modifier on the epoxy/clay interface lead to increase in the ultimate tensile strenght and elongation at break by 31% and toughness up to 83%. The electrochemical impedance spectroscopy and permeability tests proved the pronounced barrier effect of clay particles against corrosive species and water vapor when high dispersion degree of clay in NC was achieved. © 2019 Elsevier B.V.",
journal = "Progress in Organic Coatings",
title = "Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites",
volume = "131",
pages = "311-321",
doi = "10.1016/j.porgcoat.2019.02.037"
}

Tomić, M., Dunjić, B., Nikolić, M. S., Trifković, K., Stanković, N., Pavlović, V. B., Bajat, J. B.,& Đonlagić, J. A.. (2019). Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites. in Progress in Organic Coatings, 131, 311-321.
https://doi.org/10.1016/j.porgcoat.2019.02.037

Tomić M, Dunjić B, Nikolić MS, Trifković K, Stanković N, Pavlović VB, Bajat JB, Đonlagić JA. Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites. in Progress in Organic Coatings. 2019;131:311-321.
doi:10.1016/j.porgcoat.2019.02.037 .

Tomić, Miloš, Dunjić, Branko, Nikolić, Marija S., Trifković, Kata, Stanković, Nadežda, Pavlović, Vladimir B., Bajat, Jelena B., Đonlagić, Jasna A., "Polyamidoamine as a clay modifier and curing agent in preparation of epoxy nanocomposites" in Progress in Organic Coatings, 131 (2019):311-321,
https://doi.org/10.1016/j.porgcoat.2019.02.037 . .

TY  - JOUR
AU  - Tomić, Miloš
AU  - Dunjić, Branko
AU  - Nikolić, Marija S.
AU  - Maletaškić, Jelena
AU  - Pavlović, Vladimir B.
AU  - Bajat, Jelena B.
AU  - Đonlagić, Jasna A.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1951
AB  - The major aims of this paper are the investigation of the effects of the mixing procedure and the montmorillonite (Mt) surface modification on the structure (optical microscopy, XRD, TEM, SEM), rheological, mechanical properties (DMA, tensile test) and corrosion stability (electrochemical impedance spectroscopy) of clay mineral/epoxy nanocomposite (CPN). Two series of CPN samples were prepared based on diglycidyl ether of bisphenol A (DGEBA) and polyamidoamine curing agent with three organophilic Mt and sodium-montmorillonite (1 wt%). Mt were mixed with DGEBA solution in the powder (direct mixing) and in the form of dispersions, preswollen in a commercial coating thinner (solution intercalation). The commercial Mt (Cloisite 30B) modified by quaternary alkylammonium ions bearing hydroxyl groups and especially Mt functionalized by primary (HDA(+)-Mt) alkylammonium ions, at loadings close to cation exchange capacity (CRC), were significantly swollen by thinner and further uniformly dispersed into CPN. Meanwhile, low gel volumes in thinner were found for more hydrophobic Mt (Cloisite 15A). The compatibility of Mt with solvents was well described by solubility and Flory-Huggins interaction parameters. In contrast to the direct incorporation of Mt powders in CPN, swelling enhanced intercalation of epoxy matrix into Mt, and for HDA(+)-Mt based CPN interlayer spacing reached 4.4 nm. The usage of HDA(+)-Mt organoclay and solution intercalation procedure provided the highest enhancement in rheological parameters (G, G, of Mt/epoxy dispersions and glassy storage modulus, Youngs modulus and barrier properties of cured CPN.
T2  - Applied Clay Science
T1  - Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods
VL  - 154
SP  - 52
EP  - 63
DO  - 10.1016/j.clay.2017.12.047
ER  - 

@article{
author = "Tomić, Miloš and Dunjić, Branko and Nikolić, Marija S. and Maletaškić, Jelena and Pavlović, Vladimir B. and Bajat, Jelena B. and Đonlagić, Jasna A.",
year = "2018",
abstract = "The major aims of this paper are the investigation of the effects of the mixing procedure and the montmorillonite (Mt) surface modification on the structure (optical microscopy, XRD, TEM, SEM), rheological, mechanical properties (DMA, tensile test) and corrosion stability (electrochemical impedance spectroscopy) of clay mineral/epoxy nanocomposite (CPN). Two series of CPN samples were prepared based on diglycidyl ether of bisphenol A (DGEBA) and polyamidoamine curing agent with three organophilic Mt and sodium-montmorillonite (1 wt%). Mt were mixed with DGEBA solution in the powder (direct mixing) and in the form of dispersions, preswollen in a commercial coating thinner (solution intercalation). The commercial Mt (Cloisite 30B) modified by quaternary alkylammonium ions bearing hydroxyl groups and especially Mt functionalized by primary (HDA(+)-Mt) alkylammonium ions, at loadings close to cation exchange capacity (CRC), were significantly swollen by thinner and further uniformly dispersed into CPN. Meanwhile, low gel volumes in thinner were found for more hydrophobic Mt (Cloisite 15A). The compatibility of Mt with solvents was well described by solubility and Flory-Huggins interaction parameters. In contrast to the direct incorporation of Mt powders in CPN, swelling enhanced intercalation of epoxy matrix into Mt, and for HDA(+)-Mt based CPN interlayer spacing reached 4.4 nm. The usage of HDA(+)-Mt organoclay and solution intercalation procedure provided the highest enhancement in rheological parameters (G, G, of Mt/epoxy dispersions and glassy storage modulus, Youngs modulus and barrier properties of cured CPN.",
journal = "Applied Clay Science",
title = "Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods",
volume = "154",
pages = "52-63",
doi = "10.1016/j.clay.2017.12.047"
}

Tomić, M., Dunjić, B., Nikolić, M. S., Maletaškić, J., Pavlović, V. B., Bajat, J. B.,& Đonlagić, J. A.. (2018). Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods. in Applied Clay Science, 154, 52-63.
https://doi.org/10.1016/j.clay.2017.12.047

Tomić M, Dunjić B, Nikolić MS, Maletaškić J, Pavlović VB, Bajat JB, Đonlagić JA. Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods. in Applied Clay Science. 2018;154:52-63.
doi:10.1016/j.clay.2017.12.047 .

Tomić, Miloš, Dunjić, Branko, Nikolić, Marija S., Maletaškić, Jelena, Pavlović, Vladimir B., Bajat, Jelena B., Đonlagić, Jasna A., "Dispersion efficiency of montmorillonites in epoxy nanocomposites using solution intercalation and direct mixing methods" in Applied Clay Science, 154 (2018):52-63,
https://doi.org/10.1016/j.clay.2017.12.047 . .

TY  - JOUR
AU  - Kovač, Tijana S.
AU  - Džunuzović, Enis S.
AU  - Džunuzović, Jasna V.
AU  - Milićević, Bojana R.
AU  - Sredojević, Dušan
AU  - Brothers, Edward N.
AU  - Nedeljković, Jovan
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0352-51391800044K
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7934
AB  - Surface modification of titanium dioxide nanoparticles (TiO2 NPs) with the biologically active molecule pyridoxine hydrochloride (vitamin B-6) was found to alter the optical properties. Microstructural characterization involving transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis revealed that the anatase TiO2 NPs had a narrow size distribution with an average diameter of 45 angstrom. The absorption onset of the surface-modified TiO2 samples was red-shifted by about 0.4 eV compared to the unmodified particles. The mode of binding between vitamin B-6 and the surface Ti atoms was investigated by Fourier transform infrared spectroscopy (FTIR). From the Benesi-Hildebrand plot, the stability constant of the surface complex was found to be of the order 10(2) M-1. The experimental findings were supported by detailed quantum chemical calculations based on the density functional theory (DFT). Agreement was found between the experimentally measured absorption spectra of the TiO2 NPs surface-modified with vitamin B-6 and the theoretically calculated electronic excitation spectra of the corresponding model system.
T2  - Journal of the Serbian Chemical Society
T1  - Visible light absorption of TiO2 nanoparticles surface-modified with vitamin B6: A comparative experimental and DFT study
VL  - 83
IS  - 7-8
SP  - 899
EP  - 909
DO  - 10.2298/JSC180131044K
ER  - 

@article{
author = "Kovač, Tijana S. and Džunuzović, Enis S. and Džunuzović, Jasna V. and Milićević, Bojana R. and Sredojević, Dušan and Brothers, Edward N. and Nedeljković, Jovan",
year = "2018",
abstract = "Surface modification of titanium dioxide nanoparticles (TiO2 NPs) with the biologically active molecule pyridoxine hydrochloride (vitamin B-6) was found to alter the optical properties. Microstructural characterization involving transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis revealed that the anatase TiO2 NPs had a narrow size distribution with an average diameter of 45 angstrom. The absorption onset of the surface-modified TiO2 samples was red-shifted by about 0.4 eV compared to the unmodified particles. The mode of binding between vitamin B-6 and the surface Ti atoms was investigated by Fourier transform infrared spectroscopy (FTIR). From the Benesi-Hildebrand plot, the stability constant of the surface complex was found to be of the order 10(2) M-1. The experimental findings were supported by detailed quantum chemical calculations based on the density functional theory (DFT). Agreement was found between the experimentally measured absorption spectra of the TiO2 NPs surface-modified with vitamin B-6 and the theoretically calculated electronic excitation spectra of the corresponding model system.",
journal = "Journal of the Serbian Chemical Society",
title = "Visible light absorption of TiO2 nanoparticles surface-modified with vitamin B6: A comparative experimental and DFT study",
volume = "83",
number = "7-8",
pages = "899-909",
doi = "10.2298/JSC180131044K"
}

Kovač, T. S., Džunuzović, E. S., Džunuzović, J. V., Milićević, B. R., Sredojević, D., Brothers, E. N.,& Nedeljković, J.. (2018). Visible light absorption of TiO2 nanoparticles surface-modified with vitamin B6: A comparative experimental and DFT study. in Journal of the Serbian Chemical Society, 83(7-8), 899-909.
https://doi.org/10.2298/JSC180131044K

Kovač TS, Džunuzović ES, Džunuzović JV, Milićević BR, Sredojević D, Brothers EN, Nedeljković J. Visible light absorption of TiO2 nanoparticles surface-modified with vitamin B6: A comparative experimental and DFT study. in Journal of the Serbian Chemical Society. 2018;83(7-8):899-909.
doi:10.2298/JSC180131044K .

Kovač, Tijana S., Džunuzović, Enis S., Džunuzović, Jasna V., Milićević, Bojana R., Sredojević, Dušan, Brothers, Edward N., Nedeljković, Jovan, "Visible light absorption of TiO2 nanoparticles surface-modified with vitamin B6: A comparative experimental and DFT study" in Journal of the Serbian Chemical Society, 83, no. 7-8 (2018):899-909,
https://doi.org/10.2298/JSC180131044K . .

TY  - JOUR
AU  - Radoman, Tijana S.
AU  - Džunuzović, Jasna V.
AU  - Spasojević, Pavle M.
AU  - Marinović-Cincović, Milena
AU  - Jeremić, Katarina B.
AU  - Popović, Ivanka G.
AU  - Džunuzović, Enis S.
PY  - 2018
UR  - http://doi.wiley.com/10.1002/pc.24089
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7789
AB  - Alkyd resin/TiO2 nanocomposites (NC) were prepared from short oil alkyd resin and TiO2 nanoparticles (NPs) surface modified with in situ formed imine ligand, based on 3,4-dihydroxybenzaldehyde and oleylamine, or with three gallic acid esters. The short oil alkyd resin was synthesized from sunflower oil, phthalic anhydride, and trimethylolpropane. Unmodified and surface modified TiO2 NPs were examined by transmission electron microscopy. Rheological investigation revealed that prepared dispersions have higher dynamic viscosity than pure alkyd resin. Using different characterization methods it was obtained that NCs have similar thermooxidative stability as alkyd resin, lower glass transition temperature, better barrier properties, enhanced hardness, better chemical resistance, and lower adhesion to the metal, except in the case of NC prepared using TiO2 NPs surface modified with imine, which exhibited better adhesion to the metal than pure alkyd resin.
T2  - Polymer Composites
T1  - Preparation and properties of short oil alkyd resin/TiO 2 nanocomposites based on surface modified TiO 2 nanoparticles
VL  - 39
IS  - 5
SP  - 1488
EP  - 1499
DO  - 10.1002/pc.24089
ER  - 

@article{
author = "Radoman, Tijana S. and Džunuzović, Jasna V. and Spasojević, Pavle M. and Marinović-Cincović, Milena and Jeremić, Katarina B. and Popović, Ivanka G. and Džunuzović, Enis S.",
year = "2018",
abstract = "Alkyd resin/TiO2 nanocomposites (NC) were prepared from short oil alkyd resin and TiO2 nanoparticles (NPs) surface modified with in situ formed imine ligand, based on 3,4-dihydroxybenzaldehyde and oleylamine, or with three gallic acid esters. The short oil alkyd resin was synthesized from sunflower oil, phthalic anhydride, and trimethylolpropane. Unmodified and surface modified TiO2 NPs were examined by transmission electron microscopy. Rheological investigation revealed that prepared dispersions have higher dynamic viscosity than pure alkyd resin. Using different characterization methods it was obtained that NCs have similar thermooxidative stability as alkyd resin, lower glass transition temperature, better barrier properties, enhanced hardness, better chemical resistance, and lower adhesion to the metal, except in the case of NC prepared using TiO2 NPs surface modified with imine, which exhibited better adhesion to the metal than pure alkyd resin.",
journal = "Polymer Composites",
title = "Preparation and properties of short oil alkyd resin/TiO 2 nanocomposites based on surface modified TiO 2 nanoparticles",
volume = "39",
number = "5",
pages = "1488-1499",
doi = "10.1002/pc.24089"
}

Radoman, T. S., Džunuzović, J. V., Spasojević, P. M., Marinović-Cincović, M., Jeremić, K. B., Popović, I. G.,& Džunuzović, E. S.. (2018). Preparation and properties of short oil alkyd resin/TiO 2 nanocomposites based on surface modified TiO 2 nanoparticles. in Polymer Composites, 39(5), 1488-1499.
https://doi.org/10.1002/pc.24089

Radoman TS, Džunuzović JV, Spasojević PM, Marinović-Cincović M, Jeremić KB, Popović IG, Džunuzović ES. Preparation and properties of short oil alkyd resin/TiO 2 nanocomposites based on surface modified TiO 2 nanoparticles. in Polymer Composites. 2018;39(5):1488-1499.
doi:10.1002/pc.24089 .

Radoman, Tijana S., Džunuzović, Jasna V., Spasojević, Pavle M., Marinović-Cincović, Milena, Jeremić, Katarina B., Popović, Ivanka G., Džunuzović, Enis S., "Preparation and properties of short oil alkyd resin/TiO 2 nanocomposites based on surface modified TiO 2 nanoparticles" in Polymer Composites, 39, no. 5 (2018):1488-1499,
https://doi.org/10.1002/pc.24089 . .

TY  - JOUR
AU  - Fidanovski, Bojana Z.
AU  - Spasojević, Pavle M.
AU  - Panić, Vesna V.
AU  - Šešlija, Sanja
AU  - Spasojević, Jelena P.
AU  - Popović, Ivanka G.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1877
AB  - The sustainable tomorrow for future generations lies with the present industrial development toward the proper utilization of various bio-based products. For a transition to a higher level of sustainability, it is necessary to form a new platform for advanced technology products. This paper reports the development of new fully bio-based unsaturated polyesters resins (UPRs). A series of prepolymers were synthesized by varying saturated diacids (oxalic, succinic and adipic acid), itaconic acid and 1,2-propandiol. Dimethyl itaconate was used as a reactive diluent (RD) in amounts of 30, 35 and 40 wt%. Rheological measurements showed that the obtained resins possessed viscosities (234-2226 mPa s) amenable to a variety of liquid molding techniques. The impact of composition variables-prepolymer structure and amount of RD-on the chemical, mechanical and thermal properties of the thermosets was examined by DMA, TA and tensile measurements and was discussed in detail. The tensile properties (37-52 MPa), glass transition temperature (60-97 A degrees C) and coefficient of thermal expansion (71-168 10(-6) A degrees C-1) of the cured resins were in the desired range for UPRs. This investigation showed that UPRs based on itaconic acid can be tailored during synthesis of the prepolymer to meet the needs of different property profiles.
T2  - Journal of Materials Science
T1  - Synthesis and characterization of fully bio-based unsaturated polyester resins
VL  - 53
IS  - 6
SP  - 4635
EP  - 4644
DO  - 10.1007/s10853-017-1822-y
ER  - 

@article{
author = "Fidanovski, Bojana Z. and Spasojević, Pavle M. and Panić, Vesna V. and Šešlija, Sanja and Spasojević, Jelena P. and Popović, Ivanka G.",
year = "2018",
abstract = "The sustainable tomorrow for future generations lies with the present industrial development toward the proper utilization of various bio-based products. For a transition to a higher level of sustainability, it is necessary to form a new platform for advanced technology products. This paper reports the development of new fully bio-based unsaturated polyesters resins (UPRs). A series of prepolymers were synthesized by varying saturated diacids (oxalic, succinic and adipic acid), itaconic acid and 1,2-propandiol. Dimethyl itaconate was used as a reactive diluent (RD) in amounts of 30, 35 and 40 wt%. Rheological measurements showed that the obtained resins possessed viscosities (234-2226 mPa s) amenable to a variety of liquid molding techniques. The impact of composition variables-prepolymer structure and amount of RD-on the chemical, mechanical and thermal properties of the thermosets was examined by DMA, TA and tensile measurements and was discussed in detail. The tensile properties (37-52 MPa), glass transition temperature (60-97 A degrees C) and coefficient of thermal expansion (71-168 10(-6) A degrees C-1) of the cured resins were in the desired range for UPRs. This investigation showed that UPRs based on itaconic acid can be tailored during synthesis of the prepolymer to meet the needs of different property profiles.",
journal = "Journal of Materials Science",
title = "Synthesis and characterization of fully bio-based unsaturated polyester resins",
volume = "53",
number = "6",
pages = "4635-4644",
doi = "10.1007/s10853-017-1822-y"
}

Fidanovski, B. Z., Spasojević, P. M., Panić, V. V., Šešlija, S., Spasojević, J. P.,& Popović, I. G.. (2018). Synthesis and characterization of fully bio-based unsaturated polyester resins. in Journal of Materials Science, 53(6), 4635-4644.
https://doi.org/10.1007/s10853-017-1822-y

Fidanovski BZ, Spasojević PM, Panić VV, Šešlija S, Spasojević JP, Popović IG. Synthesis and characterization of fully bio-based unsaturated polyester resins. in Journal of Materials Science. 2018;53(6):4635-4644.
doi:10.1007/s10853-017-1822-y .

Fidanovski, Bojana Z., Spasojević, Pavle M., Panić, Vesna V., Šešlija, Sanja, Spasojević, Jelena P., Popović, Ivanka G., "Synthesis and characterization of fully bio-based unsaturated polyester resins" in Journal of Materials Science, 53, no. 6 (2018):4635-4644,
https://doi.org/10.1007/s10853-017-1822-y . .

TY  - JOUR
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7578
AB  - The aim of this study was the development of novel polysaccharide based films intended to be used as edible food packaging material. The films were prepared by solution casting method using highly methoxylated pectin (PEC) and poly(ethylene glycol) (PEG) of various molecular weights (400, 600 and 1000 gmol(-1)) in different ratios (5:1, 3:1 and 1:1). The film formation was supported by hydrogen bonding between PEC and PEG, which was evidenced by means of ATR-FTIR and NMR analysis. TGA revealed that generally PEG behaves like a pro-degrading agent for pectin, except in the case of PEC/PEG film with a ratio of 1:1. Furthermore, DSC thermograms indicated that PEG1000 exists as a separate phase in the pectin matrix while the formulations with PEG400 and PEG600 showed mainly amorphous morphology. The addition of PEG enhanced the plasticization of PEC films, as evidenced by progressive decreasing of the glass transition temperature values (T-g). The tensile test measurements showed that increasing concentration of PEG produced weaker and more flexibile films. Due to the increased molecular mobility, the pectin phase became more permeable to water vapor as the PEG concentration increased. The obtained results showed that the combination of both polymers resulted in interesting bio -inspired edible films with the potential to compete with commercially used synthetic package materials. (C) 2017 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Food Hydrocolloids
T1  - Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation
VL  - 77
SP  - 494
EP  - 501
DO  - 10.1016/j.foodhyd.2017.10.027
ER  - 

@article{
year = "2018",
abstract = "The aim of this study was the development of novel polysaccharide based films intended to be used as edible food packaging material. The films were prepared by solution casting method using highly methoxylated pectin (PEC) and poly(ethylene glycol) (PEG) of various molecular weights (400, 600 and 1000 gmol(-1)) in different ratios (5:1, 3:1 and 1:1). The film formation was supported by hydrogen bonding between PEC and PEG, which was evidenced by means of ATR-FTIR and NMR analysis. TGA revealed that generally PEG behaves like a pro-degrading agent for pectin, except in the case of PEC/PEG film with a ratio of 1:1. Furthermore, DSC thermograms indicated that PEG1000 exists as a separate phase in the pectin matrix while the formulations with PEG400 and PEG600 showed mainly amorphous morphology. The addition of PEG enhanced the plasticization of PEC films, as evidenced by progressive decreasing of the glass transition temperature values (T-g). The tensile test measurements showed that increasing concentration of PEG produced weaker and more flexibile films. Due to the increased molecular mobility, the pectin phase became more permeable to water vapor as the PEG concentration increased. The obtained results showed that the combination of both polymers resulted in interesting bio -inspired edible films with the potential to compete with commercially used synthetic package materials. (C) 2017 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Food Hydrocolloids",
title = "Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation",
volume = "77",
pages = "494-501",
doi = "10.1016/j.foodhyd.2017.10.027"
}

(2018). Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation. in Food Hydrocolloids
Elsevier., 77, 494-501.
https://doi.org/10.1016/j.foodhyd.2017.10.027

Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation. in Food Hydrocolloids. 2018;77:494-501.
doi:10.1016/j.foodhyd.2017.10.027 .

"Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation" in Food Hydrocolloids, 77 (2018):494-501,
https://doi.org/10.1016/j.foodhyd.2017.10.027 . .

TY  - JOUR
AU  - Šešlija, Sanja
AU  - Nešić, Aleksandra
AU  - Škorić, Marija
AU  - Krušić, Melina
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7614
AB  - The present paper reports on pectin based films modified with carboxymethyl cellulose intended for food packaging. The films are prepared by solvent-casting method with different carboxymethyl cellulose content and cross-linker concentration (Ca 2+ ions) in the presence of glycerol as a plasticizer. FT-IR spectra of the prepared films propose that carboxyl group from pectin are mainly involved in interactions with CMC, whereas −OH groups are mainly involved in self-associated hydrogen bonding of neat polymers. Further, an addition of carboxymethyl cellulose improved mechanical properties compared to pure pectin films, while TGA analysis confirmed satisfying thermal stability regarding their potential application as packaging material. Finally, water vapor permeabi lity values are in the range of 1.32 × 10 −7 up to 2.03 × 10 −7 g/m h Pa. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Macromolecular Symposia
T1  - Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material
VL  - 378
IS  - 1
DO  - 10.1002/masy.201600163
ER  - 

@article{
author = "Šešlija, Sanja and Nešić, Aleksandra and Škorić, Marija and Krušić, Melina and Santagata, Gabriella and Malinconico, Mario",
year = "2018",
abstract = "The present paper reports on pectin based films modified with carboxymethyl cellulose intended for food packaging. The films are prepared by solvent-casting method with different carboxymethyl cellulose content and cross-linker concentration (Ca 2+ ions) in the presence of glycerol as a plasticizer. FT-IR spectra of the prepared films propose that carboxyl group from pectin are mainly involved in interactions with CMC, whereas −OH groups are mainly involved in self-associated hydrogen bonding of neat polymers. Further, an addition of carboxymethyl cellulose improved mechanical properties compared to pure pectin films, while TGA analysis confirmed satisfying thermal stability regarding their potential application as packaging material. Finally, water vapor permeabi lity values are in the range of 1.32 × 10 −7 up to 2.03 × 10 −7 g/m h Pa. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Macromolecular Symposia",
title = "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material",
volume = "378",
number = "1",
doi = "10.1002/masy.201600163"
}

Šešlija, S., Nešić, A., Škorić, M., Krušić, M., Santagata, G.,& Malinconico, M.. (2018). Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material. in Macromolecular Symposia, 378(1).
https://doi.org/10.1002/masy.201600163

Šešlija S, Nešić A, Škorić M, Krušić M, Santagata G, Malinconico M. Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material. in Macromolecular Symposia. 2018;378(1).
doi:10.1002/masy.201600163 .

Šešlija, Sanja, Nešić, Aleksandra, Škorić, Marija, Krušić, Melina, Santagata, Gabriella, Malinconico, Mario, "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material" in Macromolecular Symposia, 378, no. 1 (2018),
https://doi.org/10.1002/masy.201600163 . .

TY  - JOUR
AU  - Panić, Vesna V.
AU  - Šešlija, Sanja
AU  - Popović, Ivanka G.
AU  - Spasojević, Vuk D.
AU  - Popović, Aleksandar R.
AU  - Nikolić, Vladimir B.
AU  - Spasojević, Pavle M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1873
AB  - For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.
T2  - Biomacromolecules
T1  - Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid
VL  - 18
IS  - 12
SP  - 3881
EP  - 3891
DO  - 10.1021/acs.biomac.7b00840
ER  - 

@article{
author = "Panić, Vesna V. and Šešlija, Sanja and Popović, Ivanka G. and Spasojević, Vuk D. and Popović, Aleksandar R. and Nikolić, Vladimir B. and Spasojević, Pavle M.",
year = "2017",
abstract = "For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.",
journal = "Biomacromolecules",
title = "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid",
volume = "18",
number = "12",
pages = "3881-3891",
doi = "10.1021/acs.biomac.7b00840"
}

Panić, V. V., Šešlija, S., Popović, I. G., Spasojević, V. D., Popović, A. R., Nikolić, V. B.,& Spasojević, P. M.. (2017). Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules, 18(12), 3881-3891.
https://doi.org/10.1021/acs.biomac.7b00840

Panić VV, Šešlija S, Popović IG, Spasojević VD, Popović AR, Nikolić VB, Spasojević PM. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules. 2017;18(12):3881-3891.
doi:10.1021/acs.biomac.7b00840 .

Panić, Vesna V., Šešlija, Sanja, Popović, Ivanka G., Spasojević, Vuk D., Popović, Aleksandar R., Nikolić, Vladimir B., Spasojević, Pavle M., "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid" in Biomacromolecules, 18, no. 12 (2017):3881-3891,
https://doi.org/10.1021/acs.biomac.7b00840 . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Vuković, Zorica M.
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Pavlović, Vladimir B.
AU  - Onjia, Antonije E.
AU  - Nastasović, Aleksandra B.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1494
AB  - Magnetic macroporous crosslinked copolymer glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) samples with different magnetite content were prepared by suspension copolymerization and functionalized with diethylene triamine. Samples were characterized by elemental analysis, mercury porosimetry, Fourier transform infrared spectroscopy (FTIR) analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy, transmission electron microscopy, SQUID magnetometry and X-ray photoelectron spectroscopy (XPS). The selected amino-functionalized sample was tested as a potential sorbent for the Mo(VI) and Re(VII) oxyanions from aqueous solutions. The influence of pH, ionic strength and possible interfering of cations and anions was investigated. Equilibrium data were analyzed with Langmuir, Freundlich and Tempkin adsorption isotherm models. Sorption studies were carried out in a batch competitive experiments, in the pH range 1-8, at 298 K. Obtained results indicate that 92% of Re(VII) and 98% of Mo(VI) were sorbed at pH 2. (C) 2017 Elsevier B. V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption
VL  - 705
SP  - 38
EP  - 50
DO  - 10.1016/j.jallcom.2017.02.108
ER  - 

@article{
author = "Marković, Bojana M. and Vuković, Zorica M. and Spasojević, Vojislav and Kusigerski, Vladan and Pavlović, Vladimir B. and Onjia, Antonije E. and Nastasović, Aleksandra B.",
year = "2017",
abstract = "Magnetic macroporous crosslinked copolymer glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) samples with different magnetite content were prepared by suspension copolymerization and functionalized with diethylene triamine. Samples were characterized by elemental analysis, mercury porosimetry, Fourier transform infrared spectroscopy (FTIR) analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy, transmission electron microscopy, SQUID magnetometry and X-ray photoelectron spectroscopy (XPS). The selected amino-functionalized sample was tested as a potential sorbent for the Mo(VI) and Re(VII) oxyanions from aqueous solutions. The influence of pH, ionic strength and possible interfering of cations and anions was investigated. Equilibrium data were analyzed with Langmuir, Freundlich and Tempkin adsorption isotherm models. Sorption studies were carried out in a batch competitive experiments, in the pH range 1-8, at 298 K. Obtained results indicate that 92% of Re(VII) and 98% of Mo(VI) were sorbed at pH 2. (C) 2017 Elsevier B. V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption",
volume = "705",
pages = "38-50",
doi = "10.1016/j.jallcom.2017.02.108"
}

Marković, B. M., Vuković, Z. M., Spasojević, V., Kusigerski, V., Pavlović, V. B., Onjia, A. E.,& Nastasović, A. B.. (2017). Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption. in Journal of Alloys and Compounds, 705, 38-50.
https://doi.org/10.1016/j.jallcom.2017.02.108

Marković BM, Vuković ZM, Spasojević V, Kusigerski V, Pavlović VB, Onjia AE, Nastasović AB. Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption. in Journal of Alloys and Compounds. 2017;705:38-50.
doi:10.1016/j.jallcom.2017.02.108 .

Marković, Bojana M., Vuković, Zorica M., Spasojević, Vojislav, Kusigerski, Vladan, Pavlović, Vladimir B., Onjia, Antonije E., Nastasović, Aleksandra B., "Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption" in Journal of Alloys and Compounds, 705 (2017):38-50,
https://doi.org/10.1016/j.jallcom.2017.02.108 . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Stefanovic, Ivan S.
AU  - Hercigonja, Radmila V.
AU  - Pergal, Marija V.
AU  - Marković, Jelena P.
AU  - Onjia, Antonije E.
AU  - Nastasović, Aleksandra B.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1501
AB  - Macroporous copolymers of poly[(glycidyl methacrylate)-co-(ethylene glycol dimethacrylate)] (PGME) with various crosslinker (ethylene glycol dimethacrylate) concentrations and porosity parameters and additionally functionalized with hexamethylene diamine (PGME-HD) were tested as potential Cr(VI) oxyanion sorbents from aqueous solutions. Kinetics of Cr(VI) sorption was investigated in the temperature range 298-343 K and the results were fitted to chemical reaction and particle diffusion models. The Cr(VI) sorption obeys the pseudo-second-order model with definite influence of pore diffusion. A temperature rise promotes chromium removal, with a maximum experimental uptake capacity of 4.21 mmol g(-1) at 343 K for the sample with the highest amino group concentration. Equilibrium data were analysed with Langmuir, Freundlich and Temkin adsorption isotherm models. Thermodynamic parameters, i.e. Gibbs free energy (G(0)), enthalpy (H-0) and entropy change (S-0) and activation energy of sorption (E-a), were calculated. The Cr(VI) adsorption onto PGME-HD was found to be spontaneous and endothermic, with increased randomness in the system. Desorption experiments show that chromium anion sorption was reversible and the PGME-HD sample GMA 60 HD was easily regenerated with 0.1 mol L-1 NaOH up to 90% recovery in the fourth sorption/desorption cycle. In the fifth cycle, a substantial sorption loss of 37% was observed. (c) 2016 Society of Chemical Industry
T2  - Polymer International
T1  - Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions
VL  - 66
IS  - 5
SP  - 679
EP  - 689
DO  - 10.1002/pi.5306
ER  - 

@article{
author = "Marković, Bojana M. and Stefanovic, Ivan S. and Hercigonja, Radmila V. and Pergal, Marija V. and Marković, Jelena P. and Onjia, Antonije E. and Nastasović, Aleksandra B.",
year = "2017",
abstract = "Macroporous copolymers of poly[(glycidyl methacrylate)-co-(ethylene glycol dimethacrylate)] (PGME) with various crosslinker (ethylene glycol dimethacrylate) concentrations and porosity parameters and additionally functionalized with hexamethylene diamine (PGME-HD) were tested as potential Cr(VI) oxyanion sorbents from aqueous solutions. Kinetics of Cr(VI) sorption was investigated in the temperature range 298-343 K and the results were fitted to chemical reaction and particle diffusion models. The Cr(VI) sorption obeys the pseudo-second-order model with definite influence of pore diffusion. A temperature rise promotes chromium removal, with a maximum experimental uptake capacity of 4.21 mmol g(-1) at 343 K for the sample with the highest amino group concentration. Equilibrium data were analysed with Langmuir, Freundlich and Temkin adsorption isotherm models. Thermodynamic parameters, i.e. Gibbs free energy (G(0)), enthalpy (H-0) and entropy change (S-0) and activation energy of sorption (E-a), were calculated. The Cr(VI) adsorption onto PGME-HD was found to be spontaneous and endothermic, with increased randomness in the system. Desorption experiments show that chromium anion sorption was reversible and the PGME-HD sample GMA 60 HD was easily regenerated with 0.1 mol L-1 NaOH up to 90% recovery in the fourth sorption/desorption cycle. In the fifth cycle, a substantial sorption loss of 37% was observed. (c) 2016 Society of Chemical Industry",
journal = "Polymer International",
title = "Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions",
volume = "66",
number = "5",
pages = "679-689",
doi = "10.1002/pi.5306"
}

Marković, B. M., Stefanovic, I. S., Hercigonja, R. V., Pergal, M. V., Marković, J. P., Onjia, A. E.,& Nastasović, A. B.. (2017). Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions. in Polymer International, 66(5), 679-689.
https://doi.org/10.1002/pi.5306

Marković BM, Stefanovic IS, Hercigonja RV, Pergal MV, Marković JP, Onjia AE, Nastasović AB. Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions. in Polymer International. 2017;66(5):679-689.
doi:10.1002/pi.5306 .

Marković, Bojana M., Stefanovic, Ivan S., Hercigonja, Radmila V., Pergal, Marija V., Marković, Jelena P., Onjia, Antonije E., Nastasović, Aleksandra B., "Novel hexamethylene diamine-functionalized macroporous copolymer for chromium removal from aqueous solutions" in Polymer International, 66, no. 5 (2017):679-689,
https://doi.org/10.1002/pi.5306 . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Janković, Drina
AU  - Vukadinović, Aleksandar
AU  - Ranđelović, Danijela V.
AU  - Maksin, Danijela D.
AU  - Spasojević, Vojislav
AU  - Nastasović, Aleksandra B.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1528
AB  - A novel magnetic macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (mPGME) was prepared by suspension copolymerization and functionalized with diethylenetriamine (mPGME-deta). The samples were characterized by Fourier transform infrared spectroscopy (FTIR) analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), atomic force microscopy (AFM) and SQUID magnetometry. The sorption behavior of mPGME-deta toward pertechnetate ions (TcO4-) from aqueous solution was studied. Experimental results indicated relatively fast TcO4- sorption kinetics that depends on pH and ionic strength, with a high removal efficiency of 99% within 180 min in the pH range 3.0-5.0. The pseudo-second-order model yielded the best fit for the kinetic data.
T2  - RSC Advances
T1  - A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions
VL  - 7
IS  - 35
SP  - 21412
EP  - 21421
DO  - 10.1039/c7ra02783d
ER  - 

@article{
author = "Marković, Bojana M. and Janković, Drina and Vukadinović, Aleksandar and Ranđelović, Danijela V. and Maksin, Danijela D. and Spasojević, Vojislav and Nastasović, Aleksandra B.",
year = "2017",
abstract = "A novel magnetic macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (mPGME) was prepared by suspension copolymerization and functionalized with diethylenetriamine (mPGME-deta). The samples were characterized by Fourier transform infrared spectroscopy (FTIR) analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), atomic force microscopy (AFM) and SQUID magnetometry. The sorption behavior of mPGME-deta toward pertechnetate ions (TcO4-) from aqueous solution was studied. Experimental results indicated relatively fast TcO4- sorption kinetics that depends on pH and ionic strength, with a high removal efficiency of 99% within 180 min in the pH range 3.0-5.0. The pseudo-second-order model yielded the best fit for the kinetic data.",
journal = "RSC Advances",
title = "A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions",
volume = "7",
number = "35",
pages = "21412-21421",
doi = "10.1039/c7ra02783d"
}

Marković, B. M., Janković, D., Vukadinović, A., Ranđelović, D. V., Maksin, D. D., Spasojević, V.,& Nastasović, A. B.. (2017). A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions. in RSC Advances, 7(35), 21412-21421.
https://doi.org/10.1039/c7ra02783d

Marković BM, Janković D, Vukadinović A, Ranđelović DV, Maksin DD, Spasojević V, Nastasović AB. A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions. in RSC Advances. 2017;7(35):21412-21421.
doi:10.1039/c7ra02783d .

Marković, Bojana M., Janković, Drina, Vukadinović, Aleksandar, Ranđelović, Danijela V., Maksin, Danijela D., Spasojević, Vojislav, Nastasović, Aleksandra B., "A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions" in RSC Advances, 7, no. 35 (2017):21412-21421,
https://doi.org/10.1039/c7ra02783d . .

TY  - JOUR
AU  - Nikolić, Marija S.
AU  - Petrović, Rada
AU  - Veljović, Đorđe N.
AU  - Ćosović, Vladan
AU  - Stanković, Nadežda
AU  - Đonlagić, Jasna A.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1899
AB  - Poly(epsilon-caprolactone) (PCL) based nanocomposites with unmodified and organomodified sepiolites were prepared by solution casting method. The sepiolites were modified with short (3-mercaptopropyl)trimethoxysilane (SEP-SI) by using covalent grafting or with long hexadecylamine (SEP-HDA) by using ionic exchange. In order to reveal the influence of the organomodification on the nanoclay dispersion and the properties of the nano composites XRD, DSC, TG, SEM, TEM, optical microscopy, melt rheology and dynamic-mechanical analyses were performed. A better dispersion was achieved when organomodified sepiolites instead of native ones were used as fillers. As deduced from the melt rheology data, by analysis of the Cole-Cole plots, the best dispersion was obtained for SEP-SI nanoclay. The thermal stability was not improved, however in the initial stages of the thereto-oxidative degradation a delay in the weight loss was observed for nanocomposites with organomodified sepiolites. The mechanical properties of the nanocomposites were improved in comparison to PCL, particularly for those with modified sepiolites. In terms of mechanical properties the use of sepiolite modified with HDA gave the best results, as a consequence of better interaction between longer alkyl hydrophobic part of the organic modificator and the hydrophobic PCL matrix.
T2  - European Polymer Journal
T1  - Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites
VL  - 97
SP  - 198
EP  - 209
DO  - 10.1016/j.eurpolymj.2017.10.010
ER  - 

@article{
author = "Nikolić, Marija S. and Petrović, Rada and Veljović, Đorđe N. and Ćosović, Vladan and Stanković, Nadežda and Đonlagić, Jasna A.",
year = "2017",
abstract = "Poly(epsilon-caprolactone) (PCL) based nanocomposites with unmodified and organomodified sepiolites were prepared by solution casting method. The sepiolites were modified with short (3-mercaptopropyl)trimethoxysilane (SEP-SI) by using covalent grafting or with long hexadecylamine (SEP-HDA) by using ionic exchange. In order to reveal the influence of the organomodification on the nanoclay dispersion and the properties of the nano composites XRD, DSC, TG, SEM, TEM, optical microscopy, melt rheology and dynamic-mechanical analyses were performed. A better dispersion was achieved when organomodified sepiolites instead of native ones were used as fillers. As deduced from the melt rheology data, by analysis of the Cole-Cole plots, the best dispersion was obtained for SEP-SI nanoclay. The thermal stability was not improved, however in the initial stages of the thereto-oxidative degradation a delay in the weight loss was observed for nanocomposites with organomodified sepiolites. The mechanical properties of the nanocomposites were improved in comparison to PCL, particularly for those with modified sepiolites. In terms of mechanical properties the use of sepiolite modified with HDA gave the best results, as a consequence of better interaction between longer alkyl hydrophobic part of the organic modificator and the hydrophobic PCL matrix.",
journal = "European Polymer Journal",
title = "Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites",
volume = "97",
pages = "198-209",
doi = "10.1016/j.eurpolymj.2017.10.010"
}

Nikolić, M. S., Petrović, R., Veljović, Đ. N., Ćosović, V., Stanković, N.,& Đonlagić, J. A.. (2017). Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites. in European Polymer Journal, 97, 198-209.
https://doi.org/10.1016/j.eurpolymj.2017.10.010

Nikolić MS, Petrović R, Veljović ĐN, Ćosović V, Stanković N, Đonlagić JA. Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites. in European Polymer Journal. 2017;97:198-209.
doi:10.1016/j.eurpolymj.2017.10.010 .

Nikolić, Marija S., Petrović, Rada, Veljović, Đorđe N., Ćosović, Vladan, Stanković, Nadežda, Đonlagić, Jasna A., "Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites" in European Polymer Journal, 97 (2017):198-209,
https://doi.org/10.1016/j.eurpolymj.2017.10.010 . .

TY  - JOUR
AU  - Spasojević, Pavle M.
AU  - Panić, Vesna V.
AU  - Jović, Mihajlo D.
AU  - Marković, Jelena P.
AU  - van Roost, C.
AU  - Popović, Ivanka G.
AU  - Veličković, Sava J.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/910
AB  - Mimicking the extraordinary performances of natural materials presents an attractive, but challenging approach in the synthesis of advanced functional materials. In the field of separation techniques, the design of a low-cost, regenerative, environmentally friendly sorbent and the utilization of most of its active centers to remove the targeted pollutant are everyday challenges. The combination of casein and poly(sodium methacrylate) (PMANa) in the form of a soft polymer network is proposed as a promising sorbent for the removal of Ni2+ from wastewater. Such a combination and an applied synthetic route form hybrid materials with better sorption properties than both their components alone. SEM and TEM show that caseinate micelles are dissociated and the more exposed protein structure is stabilized by the PMANa network and able to form various stable complexes. The achieved sorption capacity (224 mg g(-1)) is among the highest reported in the literature. The very high removal efficiency in the wide range of the initial Ni2+ concentrations (0.05-200 ppm) and easy and complete regeneration without decrease in sorption capacities make these low-cost materials highly sensitive sorbents attractive for use under real conditions where it is necessary to avoid environmental risks and provide the recovery and reuse of the metal.
T2  - Journal of Materials Chemistry. A
T1  - Biomimic hybrid polymer networks based on casein and poly(methacrylic acid). Case study: Ni2+ removal
VL  - 4
IS  - 5
SP  - 1680
EP  - 1693
DO  - 10.1039/c5ta08424e
ER  - 

@article{
author = "Spasojević, Pavle M. and Panić, Vesna V. and Jović, Mihajlo D. and Marković, Jelena P. and van Roost, C. and Popović, Ivanka G. and Veličković, Sava J.",
year = "2016",
abstract = "Mimicking the extraordinary performances of natural materials presents an attractive, but challenging approach in the synthesis of advanced functional materials. In the field of separation techniques, the design of a low-cost, regenerative, environmentally friendly sorbent and the utilization of most of its active centers to remove the targeted pollutant are everyday challenges. The combination of casein and poly(sodium methacrylate) (PMANa) in the form of a soft polymer network is proposed as a promising sorbent for the removal of Ni2+ from wastewater. Such a combination and an applied synthetic route form hybrid materials with better sorption properties than both their components alone. SEM and TEM show that caseinate micelles are dissociated and the more exposed protein structure is stabilized by the PMANa network and able to form various stable complexes. The achieved sorption capacity (224 mg g(-1)) is among the highest reported in the literature. The very high removal efficiency in the wide range of the initial Ni2+ concentrations (0.05-200 ppm) and easy and complete regeneration without decrease in sorption capacities make these low-cost materials highly sensitive sorbents attractive for use under real conditions where it is necessary to avoid environmental risks and provide the recovery and reuse of the metal.",
journal = "Journal of Materials Chemistry. A",
title = "Biomimic hybrid polymer networks based on casein and poly(methacrylic acid). Case study: Ni2+ removal",
volume = "4",
number = "5",
pages = "1680-1693",
doi = "10.1039/c5ta08424e"
}

Spasojević, P. M., Panić, V. V., Jović, M. D., Marković, J. P., van Roost, C., Popović, I. G.,& Veličković, S. J.. (2016). Biomimic hybrid polymer networks based on casein and poly(methacrylic acid). Case study: Ni2+ removal. in Journal of Materials Chemistry. A, 4(5), 1680-1693.
https://doi.org/10.1039/c5ta08424e

Spasojević PM, Panić VV, Jović MD, Marković JP, van Roost C, Popović IG, Veličković SJ. Biomimic hybrid polymer networks based on casein and poly(methacrylic acid). Case study: Ni2+ removal. in Journal of Materials Chemistry. A. 2016;4(5):1680-1693.
doi:10.1039/c5ta08424e .

Spasojević, Pavle M., Panić, Vesna V., Jović, Mihajlo D., Marković, Jelena P., van Roost, C., Popović, Ivanka G., Veličković, Sava J., "Biomimic hybrid polymer networks based on casein and poly(methacrylic acid). Case study: Ni2+ removal" in Journal of Materials Chemistry. A, 4, no. 5 (2016):1680-1693,
https://doi.org/10.1039/c5ta08424e . .

TY  - JOUR
AU  - Lučić Škorić, Marija
AU  - Terzić, Ivan
AU  - Milosavljevic, Nedeljko
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1226
AB  - The present paper deals with removal and photocatalytic degradation of the textile dyes by TiO2 nanoparticles immobilized onto chitosan-based microparticles. The microparticles composed of chitosan (Ch) and poly(methacrylic acid) (PMA) were fabricated for the first time by inverse suspension polymerization. They were utilized for colloidal TiO2 nanoparticles immobilization, synthetized by acidic hydrolysis of TiCl4. To evaluate the potential application of Ch/PMA/TiO2 microparticles for treatment of textile wastwaters, their photocatalytic activity was examined by degradation assessment of three different groups of anionic azo dyes in aqueous solutions under solar light simulating source. FTIR analysis revealed that Ch and PMA were incorporated in the polymer network. SEM and optical microscopy confirmed their spherical shape. Under illumination, Ch/PMA/TiO2 microparticles completely removed dyes C.I. Acid Orange 7, C.I. Acid Red 18, C.I. Acid Blue 113, C.I. Reactive Black 5, C.I. Direct Blue 78, while removal degree of C.I. Reactive Yellow 17 was 75%. It was found that pH had significant influence on the photocatalytic activity of Ch/PMA/TiO2 microparticles. Increase of solution pH from acidic to alkaline, lead to decrease in photodegradation rate of C.I. Acid Orange 7 during the first hours of illumination. After three illumination cycles, removal degree of C.I. Acid Orange 7 was maintained at remarkably high level (95% at pH 5.60 and 100% at pH 2.00 and 8.00), indicating that microparticles could be reused without significant loss of photocatalytic efficiency. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - European Polymer Journal
T1  - Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes
VL  - 82
SP  - 57
EP  - 70
DO  - 10.1016/j.eurpolymj.2016.06.026
ER  - 

@article{
author = "Lučić Škorić, Marija and Terzić, Ivan and Milosavljevic, Nedeljko and Radetić, Maja M. and Šaponjić, Zoran and Radoičić, Marija B. and Kalagasidis Krušić, Melina",
year = "2016",
abstract = "The present paper deals with removal and photocatalytic degradation of the textile dyes by TiO2 nanoparticles immobilized onto chitosan-based microparticles. The microparticles composed of chitosan (Ch) and poly(methacrylic acid) (PMA) were fabricated for the first time by inverse suspension polymerization. They were utilized for colloidal TiO2 nanoparticles immobilization, synthetized by acidic hydrolysis of TiCl4. To evaluate the potential application of Ch/PMA/TiO2 microparticles for treatment of textile wastwaters, their photocatalytic activity was examined by degradation assessment of three different groups of anionic azo dyes in aqueous solutions under solar light simulating source. FTIR analysis revealed that Ch and PMA were incorporated in the polymer network. SEM and optical microscopy confirmed their spherical shape. Under illumination, Ch/PMA/TiO2 microparticles completely removed dyes C.I. Acid Orange 7, C.I. Acid Red 18, C.I. Acid Blue 113, C.I. Reactive Black 5, C.I. Direct Blue 78, while removal degree of C.I. Reactive Yellow 17 was 75%. It was found that pH had significant influence on the photocatalytic activity of Ch/PMA/TiO2 microparticles. Increase of solution pH from acidic to alkaline, lead to decrease in photodegradation rate of C.I. Acid Orange 7 during the first hours of illumination. After three illumination cycles, removal degree of C.I. Acid Orange 7 was maintained at remarkably high level (95% at pH 5.60 and 100% at pH 2.00 and 8.00), indicating that microparticles could be reused without significant loss of photocatalytic efficiency. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "European Polymer Journal",
title = "Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes",
volume = "82",
pages = "57-70",
doi = "10.1016/j.eurpolymj.2016.06.026"
}

Lučić Škorić, M., Terzić, I., Milosavljevic, N., Radetić, M. M., Šaponjić, Z., Radoičić, M. B.,& Kalagasidis Krušić, M.. (2016). Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes. in European Polymer Journal, 82, 57-70.
https://doi.org/10.1016/j.eurpolymj.2016.06.026

Lučić Škorić M, Terzić I, Milosavljevic N, Radetić MM, Šaponjić Z, Radoičić MB, Kalagasidis Krušić M. Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes. in European Polymer Journal. 2016;82:57-70.
doi:10.1016/j.eurpolymj.2016.06.026 .

Lučić Škorić, Marija, Terzić, Ivan, Milosavljevic, Nedeljko, Radetić, Maja M., Šaponjić, Zoran, Radoičić, Marija B., Kalagasidis Krušić, Melina, "Chitosan-based microparticles for immobilization of TiO2 nanoparticles and their application for photodegradation of textile dyes" in European Polymer Journal, 82 (2016):57-70,
https://doi.org/10.1016/j.eurpolymj.2016.06.026 . .

TY  - CONF
AU  - Ekmeščić, Bojana
AU  - Janković, Drina
AU  - Vukadinović, Aleksandar
AU  - Ranđelović, Dragana
AU  - Stefanović, I. S.
AU  - Nastasović, Aleksandra B.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9254
AB  - A novel magnetic macroporous poly(glycidyl-co-ethylene glycol
dimethacrylate) (mPGME) synthesized by suspension copolymerization and
functionalized with diethylene triamine (mPGME-deta) was evaluated as
sorbent for pertechnetate ion (TcO4
-
) removal from aqueous solutions.
Atomic force microscopy (AFM) was used for characterization. The kinetics
of TcO4
-
adsorption onto mPGME-deta is relatively fast and depends on pH.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - A novel Tc 99m sorbent based on macroporous magnetic polymer
SP  - 641
EP  - 644
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9254
ER  - 

@conference{
author = "Ekmeščić, Bojana and Janković, Drina and Vukadinović, Aleksandar and Ranđelović, Dragana and Stefanović, I. S. and Nastasović, Aleksandra B.",
year = "2016",
abstract = "A novel magnetic macroporous poly(glycidyl-co-ethylene glycol
dimethacrylate) (mPGME) synthesized by suspension copolymerization and
functionalized with diethylene triamine (mPGME-deta) was evaluated as
sorbent for pertechnetate ion (TcO4
-
) removal from aqueous solutions.
Atomic force microscopy (AFM) was used for characterization. The kinetics
of TcO4
-
adsorption onto mPGME-deta is relatively fast and depends on pH.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "A novel Tc 99m sorbent based on macroporous magnetic polymer",
pages = "641-644",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9254"
}

Ekmeščić, B., Janković, D., Vukadinović, A., Ranđelović, D., Stefanović, I. S.,& Nastasović, A. B.. (2016). A novel Tc 99m sorbent based on macroporous magnetic polymer. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 641-644.
https://hdl.handle.net/21.15107/rcub_vinar_9254

Ekmeščić B, Janković D, Vukadinović A, Ranđelović D, Stefanović IS, Nastasović AB. A novel Tc 99m sorbent based on macroporous magnetic polymer. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:641-644.
https://hdl.handle.net/21.15107/rcub_vinar_9254 .

Ekmeščić, Bojana, Janković, Drina, Vukadinović, Aleksandar, Ranđelović, Dragana, Stefanović, I. S., Nastasović, Aleksandra B., "A novel Tc 99m sorbent based on macroporous magnetic polymer" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):641-644,
https://hdl.handle.net/21.15107/rcub_vinar_9254 .

TY  - JOUR
AU  - Nikolić, Marija S.
AU  - Mitrić, Miodrag
AU  - Dapčević, Aleksandra
AU  - Đonlagić, Jasna A.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/790
AB  - Viscoelastic properties in solid and in melt state of poly(epsilon-caprolactone), PCL, nanocomposites with organomodified clays (Cloisite30B and Cloisite15A) are thoroughly investigated. Although WAXD is insensitive to the difference in the nanocomposites structure, the melt rheology reveals pronounced differences between the two series. Melt yield stress values, obtained from fittings by the Carreau-Yasuda model, are used as a measure of partial exfoliation of the clay. Temperature dependence of the shift factors, used for time-temperature superposition of the modulus curves, yields similar values of the flow activation energies for all the samples. Temperature dependences of the dynamic modulus and loss factor of solid nanocomposites were correlated to the structural differences deduced from the melt rheology. The increase in the storage modulus is compared to the theoretical predictions from the Hal-pin-Tsai model. The effective aspect ratio obtained from this comparison agrees reasonably with the value estimated from the melt rheology. (C) 2015 Wiley Periodicals, Inc.
T2  - Journal of Applied Polymer Science
T1  - Viscoelastic properties of poly(e-caprolactone)/clay nanocomposites in solid and in melt state
VL  - 133
IS  - 3
DO  - 10.1002/app.42896
ER  - 

@article{
author = "Nikolić, Marija S. and Mitrić, Miodrag and Dapčević, Aleksandra and Đonlagić, Jasna A.",
year = "2016",
abstract = "Viscoelastic properties in solid and in melt state of poly(epsilon-caprolactone), PCL, nanocomposites with organomodified clays (Cloisite30B and Cloisite15A) are thoroughly investigated. Although WAXD is insensitive to the difference in the nanocomposites structure, the melt rheology reveals pronounced differences between the two series. Melt yield stress values, obtained from fittings by the Carreau-Yasuda model, are used as a measure of partial exfoliation of the clay. Temperature dependence of the shift factors, used for time-temperature superposition of the modulus curves, yields similar values of the flow activation energies for all the samples. Temperature dependences of the dynamic modulus and loss factor of solid nanocomposites were correlated to the structural differences deduced from the melt rheology. The increase in the storage modulus is compared to the theoretical predictions from the Hal-pin-Tsai model. The effective aspect ratio obtained from this comparison agrees reasonably with the value estimated from the melt rheology. (C) 2015 Wiley Periodicals, Inc.",
journal = "Journal of Applied Polymer Science",
title = "Viscoelastic properties of poly(e-caprolactone)/clay nanocomposites in solid and in melt state",
volume = "133",
number = "3",
doi = "10.1002/app.42896"
}

Nikolić, M. S., Mitrić, M., Dapčević, A.,& Đonlagić, J. A.. (2016). Viscoelastic properties of poly(e-caprolactone)/clay nanocomposites in solid and in melt state. in Journal of Applied Polymer Science, 133(3).
https://doi.org/10.1002/app.42896

Nikolić MS, Mitrić M, Dapčević A, Đonlagić JA. Viscoelastic properties of poly(e-caprolactone)/clay nanocomposites in solid and in melt state. in Journal of Applied Polymer Science. 2016;133(3).
doi:10.1002/app.42896 .

Nikolić, Marija S., Mitrić, Miodrag, Dapčević, Aleksandra, Đonlagić, Jasna A., "Viscoelastic properties of poly(e-caprolactone)/clay nanocomposites in solid and in melt state" in Journal of Applied Polymer Science, 133, no. 3 (2016),
https://doi.org/10.1002/app.42896 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Panić, Vesna
AU  - Ostojić, Sanja 
AU  - Micić, Darko M.
AU  - Pajić-Lijaković, Ivana
AU  - Onjia, Antonije E.
AU  - Veličković, Sava J.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1009
AB  - This article described the synthesis and characterization of new copolymer hydrogels containing two hydrophilic units-methacrylic acid (MAA) and 2-Acrylamido-2-methylpropane sulfonic acid (AMPS). The resulting hydrogels were characterized by various techniques: FTIR, Elemental analysis, SEM, Dynamic Molecular simulation, Dynamic-Mechanical analysis and DSC in order to confirm the structure of hydrogels and to predict the best ratio composition with enhanced physical chemical properties. The swelling behavior in water was studied as a function of ratio of monomers and their concentration in medium. An increase in AMPS content led to expansion of network and increase in swelling degree capacity in water. An increase in AMPS content did not significantly influence the glass transition temperature of copolymers, indicated that the physical properties of initial components were preserved. The equal amount of monomers contributed to the highest strength of hydrogels. Meanwhile, the introduction of AMPS to the system was an effective method for improving the performances of the poly(methacrylic acid)- based hydrogels. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid
VL  - 174
SP  - 156
EP  - 163
DO  - 10.1016/j.matchemphys.2016.02.063
ER  - 

@article{
author = "Nešić, Aleksandra and Panić, Vesna and Ostojić, Sanja  and Micić, Darko M. and Pajić-Lijaković, Ivana and Onjia, Antonije E. and Veličković, Sava J.",
year = "2016",
abstract = "This article described the synthesis and characterization of new copolymer hydrogels containing two hydrophilic units-methacrylic acid (MAA) and 2-Acrylamido-2-methylpropane sulfonic acid (AMPS). The resulting hydrogels were characterized by various techniques: FTIR, Elemental analysis, SEM, Dynamic Molecular simulation, Dynamic-Mechanical analysis and DSC in order to confirm the structure of hydrogels and to predict the best ratio composition with enhanced physical chemical properties. The swelling behavior in water was studied as a function of ratio of monomers and their concentration in medium. An increase in AMPS content led to expansion of network and increase in swelling degree capacity in water. An increase in AMPS content did not significantly influence the glass transition temperature of copolymers, indicated that the physical properties of initial components were preserved. The equal amount of monomers contributed to the highest strength of hydrogels. Meanwhile, the introduction of AMPS to the system was an effective method for improving the performances of the poly(methacrylic acid)- based hydrogels. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid",
volume = "174",
pages = "156-163",
doi = "10.1016/j.matchemphys.2016.02.063"
}

Nešić, A., Panić, V., Ostojić, S., Micić, D. M., Pajić-Lijaković, I., Onjia, A. E.,& Veličković, S. J.. (2016). Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid. in Materials Chemistry and Physics
Elsevier., 174, 156-163.
https://doi.org/10.1016/j.matchemphys.2016.02.063

Nešić A, Panić V, Ostojić S, Micić DM, Pajić-Lijaković I, Onjia AE, Veličković SJ. Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid. in Materials Chemistry and Physics. 2016;174:156-163.
doi:10.1016/j.matchemphys.2016.02.063 .

Nešić, Aleksandra, Panić, Vesna, Ostojić, Sanja , Micić, Darko M., Pajić-Lijaković, Ivana, Onjia, Antonije E., Veličković, Sava J., "Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid" in Materials Chemistry and Physics, 174 (2016):156-163,
https://doi.org/10.1016/j.matchemphys.2016.02.063 . .

TY  - CONF
AU  - Ekmeščić, Bojana
AU  - Sandić, Zvijezdana
AU  - Suručić, Ljiljana T.
AU  - Marković, Jelena P.
AU  - Stefanović, I. S.
AU  - Nastasović, Aleksandra B.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9252
AB  - Intraparticle diffusion kinetic model (IPD) was used to elucidate the
influence of macroporous glycidyl methacrylate (GMA) and ethylene glycol
dimethacrylate (EGDMA) copolymer (PGME) with attached diethylene
triamine (PGME-deta) on the competitive Cu(II), Cd(II), Co(II) and Ni(II)
ions sorption from aqueous solutions. Surface sorption was examined by
SEM-EDS analysis.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - Intraparticle diffusion and adsorption of heavy metals onto porous polymer
SP  - 637
EP  - 640
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9252
ER  - 

@conference{
author = "Ekmeščić, Bojana and Sandić, Zvijezdana and Suručić, Ljiljana T. and Marković, Jelena P. and Stefanović, I. S. and Nastasović, Aleksandra B.",
year = "2016",
abstract = "Intraparticle diffusion kinetic model (IPD) was used to elucidate the
influence of macroporous glycidyl methacrylate (GMA) and ethylene glycol
dimethacrylate (EGDMA) copolymer (PGME) with attached diethylene
triamine (PGME-deta) on the competitive Cu(II), Cd(II), Co(II) and Ni(II)
ions sorption from aqueous solutions. Surface sorption was examined by
SEM-EDS analysis.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "Intraparticle diffusion and adsorption of heavy metals onto porous polymer",
pages = "637-640",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9252"
}

Ekmeščić, B., Sandić, Z., Suručić, L. T., Marković, J. P., Stefanović, I. S.,& Nastasović, A. B.. (2016). Intraparticle diffusion and adsorption of heavy metals onto porous polymer. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 637-640.
https://hdl.handle.net/21.15107/rcub_vinar_9252

Ekmeščić B, Sandić Z, Suručić LT, Marković JP, Stefanović IS, Nastasović AB. Intraparticle diffusion and adsorption of heavy metals onto porous polymer. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:637-640.
https://hdl.handle.net/21.15107/rcub_vinar_9252 .

Ekmeščić, Bojana, Sandić, Zvijezdana, Suručić, Ljiljana T., Marković, Jelena P., Stefanović, I. S., Nastasović, Aleksandra B., "Intraparticle diffusion and adsorption of heavy metals onto porous polymer" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):637-640,
https://hdl.handle.net/21.15107/rcub_vinar_9252 .

TY  - JOUR
AU  - Radoman, Tijana S.
AU  - Džunuzović, Jasna V.
AU  - Grgur, Branimir N.
AU  - Gvozdenovic, Milica M.
AU  - Jugović, Branimir Z.
AU  - Miličević, Dejan S.
AU  - Džunuzović, Enis S.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1223
AB  - Novel TiO2-PANI core-shell nanocomposite, prepared by in situ oxidative polymerization of aniline in the presence of TiO2 nanoparticles surface modified with vitamin B6, was used to reinforce epoxy resin. The size of prepared TiO2 nanoparticles and TiO2-PANI nanocomposite were determined by a transmission electron microscopy (TEM). The surface modification of TiO2 nanoparticles was confirmed by FTIR and UV-vis spectroscopy, while the morphology of PANI and TiO2-PANI nanocomposite was investigated by scanning electron microscopy (SEM). The influence of TiO2-PANI nanocomposite on glass transition temperature, dielectric and dynamic mechanical properties, thermooxidative stability, mechanical and anticorrosion properties of epoxy based nanocomposites was investigated and compared to the properties of epoxy/PANI nanocomposites. It has been observed that the glass transition temperature of epoxy resin increases after introduction of PANI and TiO2-PANI nanocomposite, as well as with increasing their content. Prepared nanocomposites exhibited higher value of dielectric constant than pure epoxy resin. Epoxy based coating containing TiO2-PANI nanocomposite showed lower dielectric loss, higher hardness and better anticorrosion properties than pure epoxy resin and epoxy/PANI nanocomposite. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Progress in Organic Coatings
T1  - Improvement of the epoxy coating properties by incorporation of polyaniline surface treated TiO2 nanoparticles previously modified with vitamin B6
VL  - 99
SP  - 346
EP  - 355
DO  - 10.1016/j.porgcoat.2016.06.014
ER  - 

@article{
author = "Radoman, Tijana S. and Džunuzović, Jasna V. and Grgur, Branimir N. and Gvozdenovic, Milica M. and Jugović, Branimir Z. and Miličević, Dejan S. and Džunuzović, Enis S.",
year = "2016",
abstract = "Novel TiO2-PANI core-shell nanocomposite, prepared by in situ oxidative polymerization of aniline in the presence of TiO2 nanoparticles surface modified with vitamin B6, was used to reinforce epoxy resin. The size of prepared TiO2 nanoparticles and TiO2-PANI nanocomposite were determined by a transmission electron microscopy (TEM). The surface modification of TiO2 nanoparticles was confirmed by FTIR and UV-vis spectroscopy, while the morphology of PANI and TiO2-PANI nanocomposite was investigated by scanning electron microscopy (SEM). The influence of TiO2-PANI nanocomposite on glass transition temperature, dielectric and dynamic mechanical properties, thermooxidative stability, mechanical and anticorrosion properties of epoxy based nanocomposites was investigated and compared to the properties of epoxy/PANI nanocomposites. It has been observed that the glass transition temperature of epoxy resin increases after introduction of PANI and TiO2-PANI nanocomposite, as well as with increasing their content. Prepared nanocomposites exhibited higher value of dielectric constant than pure epoxy resin. Epoxy based coating containing TiO2-PANI nanocomposite showed lower dielectric loss, higher hardness and better anticorrosion properties than pure epoxy resin and epoxy/PANI nanocomposite. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Progress in Organic Coatings",
title = "Improvement of the epoxy coating properties by incorporation of polyaniline surface treated TiO2 nanoparticles previously modified with vitamin B6",
volume = "99",
pages = "346-355",
doi = "10.1016/j.porgcoat.2016.06.014"
}

Radoman, T. S., Džunuzović, J. V., Grgur, B. N., Gvozdenovic, M. M., Jugović, B. Z., Miličević, D. S.,& Džunuzović, E. S.. (2016). Improvement of the epoxy coating properties by incorporation of polyaniline surface treated TiO2 nanoparticles previously modified with vitamin B6. in Progress in Organic Coatings, 99, 346-355.
https://doi.org/10.1016/j.porgcoat.2016.06.014

Radoman TS, Džunuzović JV, Grgur BN, Gvozdenovic MM, Jugović BZ, Miličević DS, Džunuzović ES. Improvement of the epoxy coating properties by incorporation of polyaniline surface treated TiO2 nanoparticles previously modified with vitamin B6. in Progress in Organic Coatings. 2016;99:346-355.
doi:10.1016/j.porgcoat.2016.06.014 .

Radoman, Tijana S., Džunuzović, Jasna V., Grgur, Branimir N., Gvozdenovic, Milica M., Jugović, Branimir Z., Miličević, Dejan S., Džunuzović, Enis S., "Improvement of the epoxy coating properties by incorporation of polyaniline surface treated TiO2 nanoparticles previously modified with vitamin B6" in Progress in Organic Coatings, 99 (2016):346-355,
https://doi.org/10.1016/j.porgcoat.2016.06.014 . .

TY  - JOUR
AU  - Antić, Katarina M.
AU  - Babić, Marija M.
AU  - Vuković, Jovana S.
AU  - Onjia, Antonije E.
AU  - Filipović, Jovanka M.
AU  - Tomić, Simonida Lj.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1394
AB  - A series of poly(2-hydroxyethyl acrylate-co-itaconic acid), P(HEA/IA), hydrogels with different HEA/IA ratio, were synthesized using free radical crosslinking/copolymerization and investigated as sorbents for Pb2+ from aqueous solutions. Hydrogels were characterized using DMA, FTIR, DSC, SEM and AFM. The adsorption was found to be highly dependent on hydrogel composition, solution pH, sorbent weight, ionic strength and contact time. Five isotherm models, Langmuir, Freundlich, Redlich-Peterson, Temkin and Dubinin-Radushkevich, were applied to the sorption data. The best fit was obtained with Redlich-Peterson isotherm. The separation factor, RL, value indicated favorable sorption for Pb2+. The maximum sorption capacities were 392.2 and 409.8 mg/g for P(HEA/2IA) and P(HEA/10IA), respectively. Kinetic data showed best fit with pseudo-second-order model. Thermodynamic studies revealed that the reaction was exothermic and proceeds with a decrease in entropy. Moreover, P(HEA/IA) hydrogel showed the most pronounced sorption toward Pb2+ from environment containing Cu2+, Zn2+, Cd2+, Ni2+ and Co2+. Sorption/desorption experiments, showed that the P(HEA/IA) hydrogels could be reused without significant loss of the initial properties even after three adsorption-desorption cycles.
T2  - Hemijska industrija
T1  - Removal of Pb2+ from aqueous solution by P(HEA/IA) hydrogels
VL  - 70
IS  - 6
SP  - 695
EP  - 705
DO  - 10.2298/HEMIND151225006A
ER  - 

@article{
author = "Antić, Katarina M. and Babić, Marija M. and Vuković, Jovana S. and Onjia, Antonije E. and Filipović, Jovanka M. and Tomić, Simonida Lj.",
year = "2016",
abstract = "A series of poly(2-hydroxyethyl acrylate-co-itaconic acid), P(HEA/IA), hydrogels with different HEA/IA ratio, were synthesized using free radical crosslinking/copolymerization and investigated as sorbents for Pb2+ from aqueous solutions. Hydrogels were characterized using DMA, FTIR, DSC, SEM and AFM. The adsorption was found to be highly dependent on hydrogel composition, solution pH, sorbent weight, ionic strength and contact time. Five isotherm models, Langmuir, Freundlich, Redlich-Peterson, Temkin and Dubinin-Radushkevich, were applied to the sorption data. The best fit was obtained with Redlich-Peterson isotherm. The separation factor, RL, value indicated favorable sorption for Pb2+. The maximum sorption capacities were 392.2 and 409.8 mg/g for P(HEA/2IA) and P(HEA/10IA), respectively. Kinetic data showed best fit with pseudo-second-order model. Thermodynamic studies revealed that the reaction was exothermic and proceeds with a decrease in entropy. Moreover, P(HEA/IA) hydrogel showed the most pronounced sorption toward Pb2+ from environment containing Cu2+, Zn2+, Cd2+, Ni2+ and Co2+. Sorption/desorption experiments, showed that the P(HEA/IA) hydrogels could be reused without significant loss of the initial properties even after three adsorption-desorption cycles.",
journal = "Hemijska industrija",
title = "Removal of Pb2+ from aqueous solution by P(HEA/IA) hydrogels",
volume = "70",
number = "6",
pages = "695-705",
doi = "10.2298/HEMIND151225006A"
}

Antić, K. M., Babić, M. M., Vuković, J. S., Onjia, A. E., Filipović, J. M.,& Tomić, S. Lj.. (2016). Removal of Pb2+ from aqueous solution by P(HEA/IA) hydrogels. in Hemijska industrija, 70(6), 695-705.
https://doi.org/10.2298/HEMIND151225006A

Antić KM, Babić MM, Vuković JS, Onjia AE, Filipović JM, Tomić SL. Removal of Pb2+ from aqueous solution by P(HEA/IA) hydrogels. in Hemijska industrija. 2016;70(6):695-705.
doi:10.2298/HEMIND151225006A .

Antić, Katarina M., Babić, Marija M., Vuković, Jovana S., Onjia, Antonije E., Filipović, Jovanka M., Tomić, Simonida Lj., "Removal of Pb2+ from aqueous solution by P(HEA/IA) hydrogels" in Hemijska industrija, 70, no. 6 (2016):695-705,
https://doi.org/10.2298/HEMIND151225006A . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Onjia, Antonije E.
AU  - Ostojić, Sanja 
AU  - Micić, Darko M.
AU  - Veličković, Sava J.
AU  - Antonović, Dušan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/928
AB  - Films of chitosan and poly(itaconic acid) in various different ratios have been prepared by membrane casting. The enhancement in the proton conductivity and uptake of water was observed as the content of poly(itaconic acid) in film increased. The proton conductivity of chitosan/poly(itaconic) films was comparative with commercially used synthetic sensor Nafion 117. Films showed thermal stability up to 185 degrees C. The proposed experiment might open up a new possibility for use of chitosan/poly(itaconic acid) films as a biosensors due to their advantages: low cost, simple preparation and good conductive sensitivity. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Letters
T1  - Novel biosensor films based on chitosan
VL  - 167
SP  - 47
EP  - 49
DO  - 10.1016/j.matlet.2015.12.124
ER  - 

@article{
author = "Nešić, Aleksandra and Onjia, Antonije E. and Ostojić, Sanja  and Micić, Darko M. and Veličković, Sava J. and Antonović, Dušan",
year = "2016",
abstract = "Films of chitosan and poly(itaconic acid) in various different ratios have been prepared by membrane casting. The enhancement in the proton conductivity and uptake of water was observed as the content of poly(itaconic acid) in film increased. The proton conductivity of chitosan/poly(itaconic) films was comparative with commercially used synthetic sensor Nafion 117. Films showed thermal stability up to 185 degrees C. The proposed experiment might open up a new possibility for use of chitosan/poly(itaconic acid) films as a biosensors due to their advantages: low cost, simple preparation and good conductive sensitivity. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Novel biosensor films based on chitosan",
volume = "167",
pages = "47-49",
doi = "10.1016/j.matlet.2015.12.124"
}

Nešić, A., Onjia, A. E., Ostojić, S., Micić, D. M., Veličković, S. J.,& Antonović, D.. (2016). Novel biosensor films based on chitosan. in Materials Letters
Elsevier., 167, 47-49.
https://doi.org/10.1016/j.matlet.2015.12.124

Nešić A, Onjia AE, Ostojić S, Micić DM, Veličković SJ, Antonović D. Novel biosensor films based on chitosan. in Materials Letters. 2016;167:47-49.
doi:10.1016/j.matlet.2015.12.124 .

Nešić, Aleksandra, Onjia, Antonije E., Ostojić, Sanja , Micić, Darko M., Veličković, Sava J., Antonović, Dušan, "Novel biosensor films based on chitosan" in Materials Letters, 167 (2016):47-49,
https://doi.org/10.1016/j.matlet.2015.12.124 . .

TY  - JOUR
AU  - Lučić Škorić, Marija
AU  - Milosavljevic, Nedeljko
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Kalagasidis Krušić, Melina
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/768
AB  - An interpenetrating polymer network (IPN) based on the sodium alginate (A) and partially neutralized poly(methacrylic acid) (MAA) was prepared by free radical polymerization followed by additional cross-linking of sodium alginate with calcium ions. Obtained material (A/MAA IPN) was characterized by FTIR spectroscopy, thermogravimetric analysis, scanning electron microscopy, and rheological measurements. Swelling behavior of synthetized IPN has been also investigated. TiO2 nanoparticles (TiO2 NPs) were immobilized onto A/MAA IPN by dip-coating method and obtained TiO2/IPN nanocomposite was used for removal of the methylene blue (MB) from aqueous solution. The photodegradation (under illumination) and sorption (in the dark) processes for dye removal were monitored through decrease of dye concentration in the solution by UV/VIS spectrometer. The TiO2/IPN nanocomposite sorbed approximately 93% of the MB from a 10 mg L-1 MB solution in the dark, but no degradation occurred. Likewise, more than 93% of dye was removed after 8 h of illumination. However, after 24 h of illumination, the samples were discolored indicating that dye molecules were successfully degraded. Thus, the TiO2/IPN nanocomposite could be utilized in the photodegradation-sorption process for the abatement of pollutants in water. POLYM. ENG. SCI., 55:2511-2518, 2015. (c) 2015 Society of Plastics Engineers
T2  - Polymer Engineering and Science
T1  - Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles
VL  - 55
IS  - 11
SP  - 2511
EP  - 2518
DO  - 10.1002/pen.24141
ER  - 

@article{
author = "Lučić Škorić, Marija and Milosavljevic, Nedeljko and Radetić, Maja M. and Šaponjić, Zoran and Radoičić, Marija B. and Kalagasidis Krušić, Melina",
year = "2015",
abstract = "An interpenetrating polymer network (IPN) based on the sodium alginate (A) and partially neutralized poly(methacrylic acid) (MAA) was prepared by free radical polymerization followed by additional cross-linking of sodium alginate with calcium ions. Obtained material (A/MAA IPN) was characterized by FTIR spectroscopy, thermogravimetric analysis, scanning electron microscopy, and rheological measurements. Swelling behavior of synthetized IPN has been also investigated. TiO2 nanoparticles (TiO2 NPs) were immobilized onto A/MAA IPN by dip-coating method and obtained TiO2/IPN nanocomposite was used for removal of the methylene blue (MB) from aqueous solution. The photodegradation (under illumination) and sorption (in the dark) processes for dye removal were monitored through decrease of dye concentration in the solution by UV/VIS spectrometer. The TiO2/IPN nanocomposite sorbed approximately 93% of the MB from a 10 mg L-1 MB solution in the dark, but no degradation occurred. Likewise, more than 93% of dye was removed after 8 h of illumination. However, after 24 h of illumination, the samples were discolored indicating that dye molecules were successfully degraded. Thus, the TiO2/IPN nanocomposite could be utilized in the photodegradation-sorption process for the abatement of pollutants in water. POLYM. ENG. SCI., 55:2511-2518, 2015. (c) 2015 Society of Plastics Engineers",
journal = "Polymer Engineering and Science",
title = "Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles",
volume = "55",
number = "11",
pages = "2511-2518",
doi = "10.1002/pen.24141"
}

Lučić Škorić, M., Milosavljevic, N., Radetić, M. M., Šaponjić, Z., Radoičić, M. B.,& Kalagasidis Krušić, M.. (2015). Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles. in Polymer Engineering and Science, 55(11), 2511-2518.
https://doi.org/10.1002/pen.24141

Lučić Škorić M, Milosavljevic N, Radetić MM, Šaponjić Z, Radoičić MB, Kalagasidis Krušić M. Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles. in Polymer Engineering and Science. 2015;55(11):2511-2518.
doi:10.1002/pen.24141 .

Lučić Škorić, Marija, Milosavljevic, Nedeljko, Radetić, Maja M., Šaponjić, Zoran, Radoičić, Marija B., Kalagasidis Krušić, Melina, "Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO2 nanoparticles" in Polymer Engineering and Science, 55, no. 11 (2015):2511-2518,
https://doi.org/10.1002/pen.24141 . .

TY  - JOUR
AU  - Antić, Katarina M.
AU  - Babić, Marija M.
AU  - Vuković Jovasević, Jovana
AU  - Vasiljević-Radović, Dana
AU  - Onjia, Antonije E.
AU  - Filipović, Jovanka M.
AU  - Tomić, Simonida Lj.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/467
AB  - Series of novel hydrogels based on 2-hydroxyethyl acrylate (HEA) and itaconic acid (IA), P(HEA/IA) copolymers, were prepared by free radical cross-linking copolymerization and investigated as potential adsorbents for Cd2+ removal from aqueous solution. The hydrogels before and after Cd2+ adsorption were characterized using FTIR, temperature sensitive. In order to evaluate adsorption behavior of samples various factors affecting the Cd2+ uptake behavior, such as: contact time, temperature, pH, ionic strength, adsorbent weight, competitive ions and initial concentration of the metal ions were investigated. Five adsorption isotherms and two kinetic models were studied. The adsorption behavior can be very well described by the pseudo-second order kinetic model and Langmuir isotherm. Multicomponent adsorption studies revealed that adsorption of cadmium depends on the type of metal ions present in the system. Desorption studies showed that hydrogel can be reused three times with only 15% loss of adsorption capacity. All results indicate that the sample with the highest IA content is the most promising adsorbent for Cd2+ removal. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Preparation and characterization of novel P(HEA/IA) hydrogels for Cd2+ ion removal from aqueous solution
VL  - 338
SP  - 178
EP  - 189
DO  - 10.1016/j.apsusc.2015.02.133
ER  - 

@article{
author = "Antić, Katarina M. and Babić, Marija M. and Vuković Jovasević, Jovana and Vasiljević-Radović, Dana and Onjia, Antonije E. and Filipović, Jovanka M. and Tomić, Simonida Lj.",
year = "2015",
abstract = "Series of novel hydrogels based on 2-hydroxyethyl acrylate (HEA) and itaconic acid (IA), P(HEA/IA) copolymers, were prepared by free radical cross-linking copolymerization and investigated as potential adsorbents for Cd2+ removal from aqueous solution. The hydrogels before and after Cd2+ adsorption were characterized using FTIR, temperature sensitive. In order to evaluate adsorption behavior of samples various factors affecting the Cd2+ uptake behavior, such as: contact time, temperature, pH, ionic strength, adsorbent weight, competitive ions and initial concentration of the metal ions were investigated. Five adsorption isotherms and two kinetic models were studied. The adsorption behavior can be very well described by the pseudo-second order kinetic model and Langmuir isotherm. Multicomponent adsorption studies revealed that adsorption of cadmium depends on the type of metal ions present in the system. Desorption studies showed that hydrogel can be reused three times with only 15% loss of adsorption capacity. All results indicate that the sample with the highest IA content is the most promising adsorbent for Cd2+ removal. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Preparation and characterization of novel P(HEA/IA) hydrogels for Cd2+ ion removal from aqueous solution",
volume = "338",
pages = "178-189",
doi = "10.1016/j.apsusc.2015.02.133"
}

Antić, K. M., Babić, M. M., Vuković Jovasević, J., Vasiljević-Radović, D., Onjia, A. E., Filipović, J. M.,& Tomić, S. Lj.. (2015). Preparation and characterization of novel P(HEA/IA) hydrogels for Cd2+ ion removal from aqueous solution. in Applied Surface Science, 338, 178-189.
https://doi.org/10.1016/j.apsusc.2015.02.133

Antić KM, Babić MM, Vuković Jovasević J, Vasiljević-Radović D, Onjia AE, Filipović JM, Tomić SL. Preparation and characterization of novel P(HEA/IA) hydrogels for Cd2+ ion removal from aqueous solution. in Applied Surface Science. 2015;338:178-189.
doi:10.1016/j.apsusc.2015.02.133 .

Antić, Katarina M., Babić, Marija M., Vuković Jovasević, Jovana, Vasiljević-Radović, Dana, Onjia, Antonije E., Filipović, Jovanka M., Tomić, Simonida Lj., "Preparation and characterization of novel P(HEA/IA) hydrogels for Cd2+ ion removal from aqueous solution" in Applied Surface Science, 338 (2015):178-189,
https://doi.org/10.1016/j.apsusc.2015.02.133 . .