TY  - JOUR
AU  - Radoman, Tijana S.
AU  - Džunuzović, Jasna
AU  - Grgur, Branimir
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Miličević, Dejan S.
AU  - Džunuzović, Enis
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3345
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.
PB  - Elsevier Science Sa, Lausanne
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
EP  - 355
SP  - 346
VL  - 99
DO  - 10.1016/j.porgcoat.2016.06.014
ER  - 

@article{
author = "Radoman, Tijana S. and Džunuzović, Jasna and Grgur, Branimir and Gvozdenović, Milica and Jugović, Branimir and Miličević, Dejan S. and Džunuzović, Enis",
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.",
publisher = "Elsevier Science Sa, Lausanne",
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",
pages = "355-346",
volume = "99",
doi = "10.1016/j.porgcoat.2016.06.014"
}

Radoman, T. S., Džunuzović, J., Grgur, B., Gvozdenović, M., Jugović, B., Miličević, D. S.,& Džunuzović, E.. (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
Elsevier Science Sa, Lausanne., 99, 346-355.
https://doi.org/10.1016/j.porgcoat.2016.06.014

Radoman TS, Džunuzović J, Grgur B, Gvozdenović M, Jugović B, Miličević DS, Džunuzović E. 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, Grgur, Branimir, Gvozdenović, Milica, Jugović, Branimir, Miličević, Dejan S., Džunuzović, Enis, "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  - Radoičić, Marija B.
AU  - Milošević, Milica V.
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Radetić, Maja
AU  - Šaponjić, Zoran
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3131
AB  - Polyester fibers gained significant share from all other man-made fibers, but despite numerous advantages a characteristic static electricity generation is still seeking innovative solutions. In order to improve electrical properties of poly(ethyleneterephthalate) (PET) fabric, coating consisting of polyaniline/TiO2 (PANI/TiO2) nanocomposite was deposited on its surface. Coating was synthesized in acidic medium by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate CAPS) in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm) and PET fabric. The morphology, molecular structure and dielectric properties of PANI/TiO2 nanocomposites were studied by scanning electron microscopy (SEM), Raman and dielectric spectroscopies. SEM analysis revealed the formation of non-uniform PANI coating on the reference PET sample. In contrast, uniform PANI/TiO2 coating on the surface of PET fabric was generated when TiO2 nanoparticles were engaged. The existence of conductive emeraldine salt form of PANI and phenazine units was confirmed by Raman spectroscopy. Formation mechanisms of PANI and PANI/TiO2 coatings on PET fabrics were proposed. The presence of TiO2 nanoparticles significantly affected the dielectric properties (permittivity and loss tangent) and AC conductivity of PANI/TiO2 coated PET fabrics. PET fabrics coated by PANI/TiO2 nanocomposite showed up to two orders of magnitude higher conductivity in the measured frequency region compared to PANI coated PET fabric.
PB  - Elsevier Science Sa, Lausanne
T2  - Surface & Coatings Technology
T1  - Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties
EP  - 47
SP  - 38
VL  - 278
DO  - 10.1016/j.surfcoat.2015.07.070
ER  - 

@article{
author = "Radoičić, Marija B. and Milošević, Milica V. and Miličević, Dejan S. and Suljovrujić, Edin H. and Ćirić-Marjanović, Gordana N. and Radetić, Maja and Šaponjić, Zoran",
year = "2015",
abstract = "Polyester fibers gained significant share from all other man-made fibers, but despite numerous advantages a characteristic static electricity generation is still seeking innovative solutions. In order to improve electrical properties of poly(ethyleneterephthalate) (PET) fabric, coating consisting of polyaniline/TiO2 (PANI/TiO2) nanocomposite was deposited on its surface. Coating was synthesized in acidic medium by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate CAPS) in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm) and PET fabric. The morphology, molecular structure and dielectric properties of PANI/TiO2 nanocomposites were studied by scanning electron microscopy (SEM), Raman and dielectric spectroscopies. SEM analysis revealed the formation of non-uniform PANI coating on the reference PET sample. In contrast, uniform PANI/TiO2 coating on the surface of PET fabric was generated when TiO2 nanoparticles were engaged. The existence of conductive emeraldine salt form of PANI and phenazine units was confirmed by Raman spectroscopy. Formation mechanisms of PANI and PANI/TiO2 coatings on PET fabrics were proposed. The presence of TiO2 nanoparticles significantly affected the dielectric properties (permittivity and loss tangent) and AC conductivity of PANI/TiO2 coated PET fabrics. PET fabrics coated by PANI/TiO2 nanocomposite showed up to two orders of magnitude higher conductivity in the measured frequency region compared to PANI coated PET fabric.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Surface & Coatings Technology",
title = "Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties",
pages = "47-38",
volume = "278",
doi = "10.1016/j.surfcoat.2015.07.070"
}

Radoičić, M. B., Milošević, M. V., Miličević, D. S., Suljovrujić, E. H., Ćirić-Marjanović, G. N., Radetić, M.,& Šaponjić, Z.. (2015). Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties. in Surface & Coatings Technology
Elsevier Science Sa, Lausanne., 278, 38-47.
https://doi.org/10.1016/j.surfcoat.2015.07.070

Radoičić MB, Milošević MV, Miličević DS, Suljovrujić EH, Ćirić-Marjanović GN, Radetić M, Šaponjić Z. Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties. in Surface & Coatings Technology. 2015;278:38-47.
doi:10.1016/j.surfcoat.2015.07.070 .

Radoičić, Marija B., Milošević, Milica V., Miličević, Dejan S., Suljovrujić, Edin H., Ćirić-Marjanović, Gordana N., Radetić, Maja, Šaponjić, Zoran, "Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties" in Surface & Coatings Technology, 278 (2015):38-47,
https://doi.org/10.1016/j.surfcoat.2015.07.070 . .

TY  - JOUR
AU  - Radoman, Tijana S.
AU  - Džunuzović, Jasna
AU  - Jeremić, Katarina B.
AU  - Grgur, Branimir
AU  - Miličević, Dejan S.
AU  - Popović, Ivanka
AU  - Džunuzović, Enis
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2695
AB  - Epoxy resin/titanium dioxide (epoxy/TiO2) nanocomposites were obtained by incorporation of TiO2 nanoparticles surface modified with gallic acid esters in epoxy resin. TiO2 nanoparticles were obtained by acid catalyzed hydrolysis of titanium isopropoxide and their structural characterization was performed by X-ray diffraction and transmission electron microscopy. Three gallic acid esters, having different hydrophobic part, were used for surface modification of the synthesized TiO2 nanoparticles: propyl, hexyl and lauryl gallate. The gallate chemisorption onto surface of TiO2 nanoparticles was confirmed by Fourier transform infrared and ultraviolet-visible spectroscopy, while the amount of surface-bonded gallates was determined using thermogravimetric analysis. The influence of the surface modified TiO2 nanoparticles, as well as the length of hydrophobic part of the gallate used for surface modification of TiO2 nanoparticles, on glass transition temperature, barrier, dielectric and anticorrosive properties of epoxy resin was investigated by differential scanning calorimetry, water vapor transmission test, dielectric spectroscopy, electrochemical impedance spectroscopy and polarization measurements. Incorporation of surface modified TiO2 nanoparticles in epoxy resin caused increase of glass transition temperature and decrease of the water vapor permeability of epoxy resin. The water vapor transmission rate of epoxy/TiO2 nanocomposites was reduced with increasing hydrophobic part chain length of gallate ligand. Dielectric constant of examined nanocomposites was influenced by gallate used for the modification of TiO2 nanoparticles. The nanocomposites have better anticorrosive properties than pure epoxy resin, because the surface modified TiO2 nanoparticles react as oxygen scavengers, which inhibit steel corrosion by cathodic mechanism.
PB  - Elsevier Sci Ltd, Oxford
T2  - Materials & Design
T1  - Improvement of epoxy resin properties by incorporation of TiO2 nanoparticles surface modified with gallic acid esters
EP  - 167
SP  - 158
VL  - 62
DO  - 10.1016/j.matdes.2014.05.015
ER  - 

@article{
author = "Radoman, Tijana S. and Džunuzović, Jasna and Jeremić, Katarina B. and Grgur, Branimir and Miličević, Dejan S. and Popović, Ivanka and Džunuzović, Enis",
year = "2014",
abstract = "Epoxy resin/titanium dioxide (epoxy/TiO2) nanocomposites were obtained by incorporation of TiO2 nanoparticles surface modified with gallic acid esters in epoxy resin. TiO2 nanoparticles were obtained by acid catalyzed hydrolysis of titanium isopropoxide and their structural characterization was performed by X-ray diffraction and transmission electron microscopy. Three gallic acid esters, having different hydrophobic part, were used for surface modification of the synthesized TiO2 nanoparticles: propyl, hexyl and lauryl gallate. The gallate chemisorption onto surface of TiO2 nanoparticles was confirmed by Fourier transform infrared and ultraviolet-visible spectroscopy, while the amount of surface-bonded gallates was determined using thermogravimetric analysis. The influence of the surface modified TiO2 nanoparticles, as well as the length of hydrophobic part of the gallate used for surface modification of TiO2 nanoparticles, on glass transition temperature, barrier, dielectric and anticorrosive properties of epoxy resin was investigated by differential scanning calorimetry, water vapor transmission test, dielectric spectroscopy, electrochemical impedance spectroscopy and polarization measurements. Incorporation of surface modified TiO2 nanoparticles in epoxy resin caused increase of glass transition temperature and decrease of the water vapor permeability of epoxy resin. The water vapor transmission rate of epoxy/TiO2 nanocomposites was reduced with increasing hydrophobic part chain length of gallate ligand. Dielectric constant of examined nanocomposites was influenced by gallate used for the modification of TiO2 nanoparticles. The nanocomposites have better anticorrosive properties than pure epoxy resin, because the surface modified TiO2 nanoparticles react as oxygen scavengers, which inhibit steel corrosion by cathodic mechanism.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Materials & Design",
title = "Improvement of epoxy resin properties by incorporation of TiO2 nanoparticles surface modified with gallic acid esters",
pages = "167-158",
volume = "62",
doi = "10.1016/j.matdes.2014.05.015"
}

Radoman, T. S., Džunuzović, J., Jeremić, K. B., Grgur, B., Miličević, D. S., Popović, I.,& Džunuzović, E.. (2014). Improvement of epoxy resin properties by incorporation of TiO2 nanoparticles surface modified with gallic acid esters. in Materials & Design
Elsevier Sci Ltd, Oxford., 62, 158-167.
https://doi.org/10.1016/j.matdes.2014.05.015

Radoman TS, Džunuzović J, Jeremić KB, Grgur B, Miličević DS, Popović I, Džunuzović E. Improvement of epoxy resin properties by incorporation of TiO2 nanoparticles surface modified with gallic acid esters. in Materials & Design. 2014;62:158-167.
doi:10.1016/j.matdes.2014.05.015 .

Radoman, Tijana S., Džunuzović, Jasna, Jeremić, Katarina B., Grgur, Branimir, Miličević, Dejan S., Popović, Ivanka, Džunuzović, Enis, "Improvement of epoxy resin properties by incorporation of TiO2 nanoparticles surface modified with gallic acid esters" in Materials & Design, 62 (2014):158-167,
https://doi.org/10.1016/j.matdes.2014.05.015 . .

TY  - JOUR
AU  - Vukašinović-Milić, Tatjana
AU  - Miličević, Dejan S.
AU  - Mićić, Maja M.
AU  - Trifunović, Saša
AU  - Suljovrujić, Edin H.
AU  - Tomić, Simonida
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/925
AB  - The effects of gamma irradiation on the structure and properties of hydroxyapatite/poly- Llactide (HAp/PLLA) biomaterial have been investigated. Effects of radiation on microstructure, degradation of polymer part and thermal stability of composite were determined by scanning electronic microscopy (SEM), gel permeation chromatography (GPC) and thermogravimetric analysis (TGA), respectively. Mechanical properties were obtained through mechanical strength and elasticity modulus. Presented results show that properties of HAp/PLLA decay with irradiation dose, but for doses required for sterilization, changes and damaging effects are acceptable.
AB  - Ispitivan je uticaj γ-zračenja na strukturu i osobine hidroksiapatit/poli-L-laktida (Hap/PLLA). Uticaj zračenja na mikrostrukturu degradaciju polimera i termičku stabilanost kompozita određivani su skenirajućom elektronskom mikroskopijom (SEM), gel-propusnom hromatografijom (GPH) i termogravimetrijskom analizom (TGA), respektivno. Mehaničke osobine su određene na osnovu mehaničke čvrstoće i modula elastičnosti. Dobijeni rezultati pokazuju slabljenje osobina HAp/PLLA sa povećanjem doze zračenja. Za doze zračenja pri kojima se odvija sterilizacija, promene i efekti oštećenja su prihvatljivi.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika - Novi materijali
T1  - Sterilization of hydroxyapatite/poly-L-lactide composite biomaterial by gamma irradiation
T1  - Sterilizacija hidroksiapatit/poli-L-laktid kompozitnog biomaterijala dejstvom γ-zračenja
EP  - 14
IS  - 4
SP  - 9
VL  - 15
UR  - https://hdl.handle.net/21.15107/rcub_technorep_925
ER  - 

@article{
author = "Vukašinović-Milić, Tatjana and Miličević, Dejan S. and Mićić, Maja M. and Trifunović, Saša and Suljovrujić, Edin H. and Tomić, Simonida and Ignjatović, Nenad and Uskoković, Dragan",
year = "2006",
abstract = "The effects of gamma irradiation on the structure and properties of hydroxyapatite/poly- Llactide (HAp/PLLA) biomaterial have been investigated. Effects of radiation on microstructure, degradation of polymer part and thermal stability of composite were determined by scanning electronic microscopy (SEM), gel permeation chromatography (GPC) and thermogravimetric analysis (TGA), respectively. Mechanical properties were obtained through mechanical strength and elasticity modulus. Presented results show that properties of HAp/PLLA decay with irradiation dose, but for doses required for sterilization, changes and damaging effects are acceptable., Ispitivan je uticaj γ-zračenja na strukturu i osobine hidroksiapatit/poli-L-laktida (Hap/PLLA). Uticaj zračenja na mikrostrukturu degradaciju polimera i termičku stabilanost kompozita određivani su skenirajućom elektronskom mikroskopijom (SEM), gel-propusnom hromatografijom (GPH) i termogravimetrijskom analizom (TGA), respektivno. Mehaničke osobine su određene na osnovu mehaničke čvrstoće i modula elastičnosti. Dobijeni rezultati pokazuju slabljenje osobina HAp/PLLA sa povećanjem doze zračenja. Za doze zračenja pri kojima se odvija sterilizacija, promene i efekti oštećenja su prihvatljivi.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika - Novi materijali",
title = "Sterilization of hydroxyapatite/poly-L-lactide composite biomaterial by gamma irradiation, Sterilizacija hidroksiapatit/poli-L-laktid kompozitnog biomaterijala dejstvom γ-zračenja",
pages = "14-9",
number = "4",
volume = "15",
url = "https://hdl.handle.net/21.15107/rcub_technorep_925"
}

Vukašinović-Milić, T., Miličević, D. S., Mićić, M. M., Trifunović, S., Suljovrujić, E. H., Tomić, S., Ignjatović, N.,& Uskoković, D.. (2006). Sterilization of hydroxyapatite/poly-L-lactide composite biomaterial by gamma irradiation. in Tehnika - Novi materijali
Savez inženjera i tehničara Srbije, Beograd., 15(4), 9-14.
https://hdl.handle.net/21.15107/rcub_technorep_925

Vukašinović-Milić T, Miličević DS, Mićić MM, Trifunović S, Suljovrujić EH, Tomić S, Ignjatović N, Uskoković D. Sterilization of hydroxyapatite/poly-L-lactide composite biomaterial by gamma irradiation. in Tehnika - Novi materijali. 2006;15(4):9-14.
https://hdl.handle.net/21.15107/rcub_technorep_925 .

Vukašinović-Milić, Tatjana, Miličević, Dejan S., Mićić, Maja M., Trifunović, Saša, Suljovrujić, Edin H., Tomić, Simonida, Ignjatović, Nenad, Uskoković, Dragan, "Sterilization of hydroxyapatite/poly-L-lactide composite biomaterial by gamma irradiation" in Tehnika - Novi materijali, 15, no. 4 (2006):9-14,
https://hdl.handle.net/21.15107/rcub_technorep_925 .