TY  - JOUR
AU  - Rusmirović, Jelena
AU  - Trifkovic, K T
AU  - Bugarski, Branko
AU  - Pavlović, Vladimir B.
AU  - Džunuzović, Jasna
AU  - Tomić, Miloš
AU  - Marinković, Aleksandar D.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1981
AB  - Influences of the vinyl modified nanosilica Aerosil (R) 380, i.e., vinyl and methacryloyl silane coupling agent and linseed oil fatty acids (BD) reactive residues, on the mechanical properties of the unsaturated polyester resins (UPes) based nanocomposites, was studied. The polycondensation of maleic anhydride and products of poly(ethylene terephthalate) (PET) depolymerization with propylene glycol, with and without separation of ethylene glycol, yields UPe1 and UPe2 resin, respectively. The hydroxyl terminated PET depolymerization products (glycolyzates) and UPes were characterized by acid and hydroxyl values, Fourier Transform Infrared (FTIR) and nuclear magneti resonance (NMR) spectroscopies. Transmission electron microscopy (TEM) confirmed that silica nanoparticles formed domains of aggregates in the polymer matrix. An increase from 195 to 247% of stress at break (sigma(b)), and from 109 to 131% of impact strength (sigma(i)) of UPes based nanocomposites was obtained for 1 wt% addition of vinyl modified silica. Flexural strength (sigma(f)) increase from 106 to 156% for both UPes based nanocomposites with 1 wt% addition of BD modified silica. Cross-linking density (nu), storage modulus (G'), tan delta and T-g of the nanocomposite were determined from the dynamic mechanical testing and discussed in relation to the structure of silica modification.
PB  - Budapest University of Technology
T2  - Express Polymer Letters
T1  - High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties
VL  - 10
IS  - 2
SP  - 139
EP  - 159
DO  - 10.3144/expresspolymlett.2016.14
ER  - 

@article{
author = "Rusmirović, Jelena and Trifkovic, K T and Bugarski, Branko and Pavlović, Vladimir B. and Džunuzović, Jasna and Tomić, Miloš and Marinković, Aleksandar D.",
year = "2016",
abstract = "Influences of the vinyl modified nanosilica Aerosil (R) 380, i.e., vinyl and methacryloyl silane coupling agent and linseed oil fatty acids (BD) reactive residues, on the mechanical properties of the unsaturated polyester resins (UPes) based nanocomposites, was studied. The polycondensation of maleic anhydride and products of poly(ethylene terephthalate) (PET) depolymerization with propylene glycol, with and without separation of ethylene glycol, yields UPe1 and UPe2 resin, respectively. The hydroxyl terminated PET depolymerization products (glycolyzates) and UPes were characterized by acid and hydroxyl values, Fourier Transform Infrared (FTIR) and nuclear magneti resonance (NMR) spectroscopies. Transmission electron microscopy (TEM) confirmed that silica nanoparticles formed domains of aggregates in the polymer matrix. An increase from 195 to 247% of stress at break (sigma(b)), and from 109 to 131% of impact strength (sigma(i)) of UPes based nanocomposites was obtained for 1 wt% addition of vinyl modified silica. Flexural strength (sigma(f)) increase from 106 to 156% for both UPes based nanocomposites with 1 wt% addition of BD modified silica. Cross-linking density (nu), storage modulus (G'), tan delta and T-g of the nanocomposite were determined from the dynamic mechanical testing and discussed in relation to the structure of silica modification.",
publisher = "Budapest University of Technology",
journal = "Express Polymer Letters",
title = "High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties",
volume = "10",
number = "2",
pages = "139-159",
doi = "10.3144/expresspolymlett.2016.14"
}

Rusmirović, J., Trifkovic, K. T., Bugarski, B., Pavlović, V. B., Džunuzović, J., Tomić, M.,& Marinković, A. D.. (2016). High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties. in Express Polymer Letters
Budapest University of Technology., 10(2), 139-159.
https://doi.org/10.3144/expresspolymlett.2016.14

Rusmirović J, Trifkovic KT, Bugarski B, Pavlović VB, Džunuzović J, Tomić M, Marinković AD. High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties. in Express Polymer Letters. 2016;10(2):139-159.
doi:10.3144/expresspolymlett.2016.14 .

Rusmirović, Jelena, Trifkovic, K T, Bugarski, Branko, Pavlović, Vladimir B., Džunuzović, Jasna, Tomić, Miloš, Marinković, Aleksandar D., "High performance unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties" in Express Polymer Letters, 10, no. 2 (2016):139-159,
https://doi.org/10.3144/expresspolymlett.2016.14 . .

TY  - JOUR
AU  - Radoman, T S
AU  - Džunuzović, Jasna
AU  - Trifkovic, K T
AU  - Palija, T
AU  - Marinković, Aleksandar D.
AU  - Bugarski, Branko
AU  - Dzunuzovic, E S
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1701
AB  - Novel soy alkyd-based nanocomposites (NCs) were prepared using TiO2 nanoparticles (NPs) surface modified with different gallates, and for the first time with imine obtained from 3,4-dihydroxybenzaldehyde and oleylamine (DHBAOA). Unmodified and surface modified anatase TiO2 NPs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible (UV-Vis) spectroscopy, while the amount of adsorbed ligands was calculated from thermogravimetric analysis (TGA) results. Surface modification of TiO2 NPs was confirmed by FTIR and UV-Vis spectra. The influence of the TiO2 surface modification on the dispersion of TiO2 NPs in alkyd resin, thermal, barrier and mechanical properties and chemical resistance of alkyd resin/TiO2 NC coatings was investigated. The obtained results revealed that glass transition temperature of all investigated NCs is lower than for pure resin, that the presence of TiO2 NPs surface modified with gallates had no significant influence on the thermooxidative stability of alkyd resin, while TiO2-DHBAOA NPs slightly improved alkyd resin thermooxidative stability. Also, the presence of surface modified TiO2 NPs improved barrier properties, increased stress and strain at break and hardness and chemical resistance and decreased modulus of elasticity and abrasion resistance of alkyd resin.
PB  - Budapest University of Technology
T2  - Express Polymer Letters
T1  - Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings
VL  - 9
IS  - 10
SP  - 916
EP  - 931
DO  - 10.3144/expresspolymlett.2015.83
ER  - 

@article{
author = "Radoman, T S and Džunuzović, Jasna and Trifkovic, K T and Palija, T and Marinković, Aleksandar D. and Bugarski, Branko and Dzunuzovic, E S",
year = "2015",
abstract = "Novel soy alkyd-based nanocomposites (NCs) were prepared using TiO2 nanoparticles (NPs) surface modified with different gallates, and for the first time with imine obtained from 3,4-dihydroxybenzaldehyde and oleylamine (DHBAOA). Unmodified and surface modified anatase TiO2 NPs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible (UV-Vis) spectroscopy, while the amount of adsorbed ligands was calculated from thermogravimetric analysis (TGA) results. Surface modification of TiO2 NPs was confirmed by FTIR and UV-Vis spectra. The influence of the TiO2 surface modification on the dispersion of TiO2 NPs in alkyd resin, thermal, barrier and mechanical properties and chemical resistance of alkyd resin/TiO2 NC coatings was investigated. The obtained results revealed that glass transition temperature of all investigated NCs is lower than for pure resin, that the presence of TiO2 NPs surface modified with gallates had no significant influence on the thermooxidative stability of alkyd resin, while TiO2-DHBAOA NPs slightly improved alkyd resin thermooxidative stability. Also, the presence of surface modified TiO2 NPs improved barrier properties, increased stress and strain at break and hardness and chemical resistance and decreased modulus of elasticity and abrasion resistance of alkyd resin.",
publisher = "Budapest University of Technology",
journal = "Express Polymer Letters",
title = "Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings",
volume = "9",
number = "10",
pages = "916-931",
doi = "10.3144/expresspolymlett.2015.83"
}

Radoman, T. S., Džunuzović, J., Trifkovic, K. T., Palija, T., Marinković, A. D., Bugarski, B.,& Dzunuzovic, E. S.. (2015). Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings. in Express Polymer Letters
Budapest University of Technology., 9(10), 916-931.
https://doi.org/10.3144/expresspolymlett.2015.83

Radoman TS, Džunuzović J, Trifkovic KT, Palija T, Marinković AD, Bugarski B, Dzunuzovic ES. Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings. in Express Polymer Letters. 2015;9(10):916-931.
doi:10.3144/expresspolymlett.2015.83 .

Radoman, T S, Džunuzović, Jasna, Trifkovic, K T, Palija, T, Marinković, Aleksandar D., Bugarski, Branko, Dzunuzovic, E S, "Effect of surface modified TiO2 nanoparticles on thermal, barrier and mechanical properties of long oil alkyd resin-based coatings" in Express Polymer Letters, 9, no. 10 (2015):916-931,
https://doi.org/10.3144/expresspolymlett.2015.83 . .