TY  - JOUR
AU  - Kalifa, Mustafa
AU  - Tomić, Nataša Z.
AU  - Vuksanović, Marija M.
AU  - Stevanović, Sanja
AU  - Dokić, Veljko
AU  - Volkov-Husović, Tatjana
AU  - Pavlović, Vladimir
AU  - Jancić-Heinemann, Radmila
AU  - Marinković, Aleksandar D.
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5401
AB  - Cavitation erosion of hybrid acrylate composite films with polyhedral oligosilsesquioxanes (POSS) was investigated in this study. The hybrid films are made with 1, 3 and 5 wt% of POSS reagents containing: (a) hydroxyl (POSS-M), (b) both hydroxyl and allyl (POSS-M-A) and (c) methacryloyl groups (POSS-M-Cl). Addition of 5 wt% POSS-M-A caused the highest microhardness increase for 49.8%, in comparison to the pure matrix material. Cavitation resistance of hybrid films, estimated as the time-dependent mass loss, was improved by POSS addition. POSS-M-A addition (5 wt%) contributed to 94% lower mass loss comparing to pure Bis-GMA/TEGDMA film. Scanning electron (SEM) and atomic force microscopy (AFM) showed the lowest surface roughness obtained for composite with POSS-M-A. The improved hardness and wear resistance of the composite films indicated that POSS-M-A filler enhanced interfacial adhesion and reinforcing of the Bis-GMA/TEGDMA matrix.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - The effect of polyhedral oligosilsesquioxanes (POSS) on cavitation resistance of hybrid acrylate films
EP  - 3410
IS  - 8
SP  - 3403
VL  - 41
DO  - 10.1002/pc.25629
ER  - 

@article{
author = "Kalifa, Mustafa and Tomić, Nataša Z. and Vuksanović, Marija M. and Stevanović, Sanja and Dokić, Veljko and Volkov-Husović, Tatjana and Pavlović, Vladimir and Jancić-Heinemann, Radmila and Marinković, Aleksandar D.",
year = "2020",
abstract = "Cavitation erosion of hybrid acrylate composite films with polyhedral oligosilsesquioxanes (POSS) was investigated in this study. The hybrid films are made with 1, 3 and 5 wt% of POSS reagents containing: (a) hydroxyl (POSS-M), (b) both hydroxyl and allyl (POSS-M-A) and (c) methacryloyl groups (POSS-M-Cl). Addition of 5 wt% POSS-M-A caused the highest microhardness increase for 49.8%, in comparison to the pure matrix material. Cavitation resistance of hybrid films, estimated as the time-dependent mass loss, was improved by POSS addition. POSS-M-A addition (5 wt%) contributed to 94% lower mass loss comparing to pure Bis-GMA/TEGDMA film. Scanning electron (SEM) and atomic force microscopy (AFM) showed the lowest surface roughness obtained for composite with POSS-M-A. The improved hardness and wear resistance of the composite films indicated that POSS-M-A filler enhanced interfacial adhesion and reinforcing of the Bis-GMA/TEGDMA matrix.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "The effect of polyhedral oligosilsesquioxanes (POSS) on cavitation resistance of hybrid acrylate films",
pages = "3410-3403",
number = "8",
volume = "41",
doi = "10.1002/pc.25629"
}

Kalifa, M., Tomić, N. Z., Vuksanović, M. M., Stevanović, S., Dokić, V., Volkov-Husović, T., Pavlović, V., Jancić-Heinemann, R.,& Marinković, A. D.. (2020). The effect of polyhedral oligosilsesquioxanes (POSS) on cavitation resistance of hybrid acrylate films. in Polymer Composites
Wiley, Hoboken., 41(8), 3403-3410.
https://doi.org/10.1002/pc.25629

Kalifa M, Tomić NZ, Vuksanović MM, Stevanović S, Dokić V, Volkov-Husović T, Pavlović V, Jancić-Heinemann R, Marinković AD. The effect of polyhedral oligosilsesquioxanes (POSS) on cavitation resistance of hybrid acrylate films. in Polymer Composites. 2020;41(8):3403-3410.
doi:10.1002/pc.25629 .

Kalifa, Mustafa, Tomić, Nataša Z., Vuksanović, Marija M., Stevanović, Sanja, Dokić, Veljko, Volkov-Husović, Tatjana, Pavlović, Vladimir, Jancić-Heinemann, Radmila, Marinković, Aleksandar D., "The effect of polyhedral oligosilsesquioxanes (POSS) on cavitation resistance of hybrid acrylate films" in Polymer Composites, 41, no. 8 (2020):3403-3410,
https://doi.org/10.1002/pc.25629 . .

TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Vuksanović, Marija M.
AU  - Djokić, Veljko
AU  - Mitrić, Miodrag
AU  - Simić, Milena R.
AU  - Pavlović, Vladimir
AU  - Jancić-Heinemann, Radmila
AU  - Marinković, Aleksandar D.
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5002
AB  - A facile synthesis was employed for three polyhedral oligo silsequioxanes (POSS), obtaining incompletely condensed structures with fern-like and cubic morphologies. Proton nuclear magnetic resonance spectroscopy (H-1 NMR) indicated the successful synthesis of the proposed POSS structures. The hydroxyl groups affected the manner and type of POSS morphology, as seen under a scanning electron microscope (SEM) and a transmission electron microscope (TEM). Fourier-transform infrared spectroscopy (FTIR) showed the availability of surface hydroxyl groups that contributed to the formation of a higher amount of char residue, as found from TGA analysis. The highest decomposition temperature (281 degrees C) and the least char residue were found for a cross-linkable POSS, obtained by esterification of the hydroxyl groups with methacryloyl chloride.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Polyhedron
T1  - Synthesis and characterization of nanocrystalline polyhedral oligo silsesquioxanes (POSS) with cross-linkable functionalities
EP  - 304
SP  - 299
VL  - 171
DO  - 10.1016/j.poly.2019.06.059
ER  - 

@article{
author = "Tomić, Nataša Z. and Vuksanović, Marija M. and Djokić, Veljko and Mitrić, Miodrag and Simić, Milena R. and Pavlović, Vladimir and Jancić-Heinemann, Radmila and Marinković, Aleksandar D.",
year = "2019",
abstract = "A facile synthesis was employed for three polyhedral oligo silsequioxanes (POSS), obtaining incompletely condensed structures with fern-like and cubic morphologies. Proton nuclear magnetic resonance spectroscopy (H-1 NMR) indicated the successful synthesis of the proposed POSS structures. The hydroxyl groups affected the manner and type of POSS morphology, as seen under a scanning electron microscope (SEM) and a transmission electron microscope (TEM). Fourier-transform infrared spectroscopy (FTIR) showed the availability of surface hydroxyl groups that contributed to the formation of a higher amount of char residue, as found from TGA analysis. The highest decomposition temperature (281 degrees C) and the least char residue were found for a cross-linkable POSS, obtained by esterification of the hydroxyl groups with methacryloyl chloride.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Polyhedron",
title = "Synthesis and characterization of nanocrystalline polyhedral oligo silsesquioxanes (POSS) with cross-linkable functionalities",
pages = "304-299",
volume = "171",
doi = "10.1016/j.poly.2019.06.059"
}

Tomić, N. Z., Vuksanović, M. M., Djokić, V., Mitrić, M., Simić, M. R., Pavlović, V., Jancić-Heinemann, R.,& Marinković, A. D.. (2019). Synthesis and characterization of nanocrystalline polyhedral oligo silsesquioxanes (POSS) with cross-linkable functionalities. in Polyhedron
Pergamon-Elsevier Science Ltd, Oxford., 171, 299-304.
https://doi.org/10.1016/j.poly.2019.06.059

Tomić NZ, Vuksanović MM, Djokić V, Mitrić M, Simić MR, Pavlović V, Jancić-Heinemann R, Marinković AD. Synthesis and characterization of nanocrystalline polyhedral oligo silsesquioxanes (POSS) with cross-linkable functionalities. in Polyhedron. 2019;171:299-304.
doi:10.1016/j.poly.2019.06.059 .

Tomić, Nataša Z., Vuksanović, Marija M., Djokić, Veljko, Mitrić, Miodrag, Simić, Milena R., Pavlović, Vladimir, Jancić-Heinemann, Radmila, Marinković, Aleksandar D., "Synthesis and characterization of nanocrystalline polyhedral oligo silsesquioxanes (POSS) with cross-linkable functionalities" in Polyhedron, 171 (2019):299-304,
https://doi.org/10.1016/j.poly.2019.06.059 . .

TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Marinković, Aleksandar D.
AU  - Veljović, Djordje
AU  - Trifković, Kata
AU  - Lević, Steva
AU  - Radojević, Vesna
AU  - Jancić-Heinemann, Radmila
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4749
AB  - Mechanical, morphological and thermal properties of optical fiber adhesives, based on poly(ethylene-co-vinyl acetate) (EVA) with 18 and 40% of vinyl acetate, polymer blend of EVA/poly(methyl methacrylate) (PMMA), and graft polymer, raw EVA-g-PMMA, prepared via in situ free radical polymerization, were studied. Extraction of PMMA homopolymer from raw EVA-g-PMMA produced purified EVA-g-PMMA, which enable quantitative determination of graft initiating centers by NMR spectroscopy. FTIR and image analysis allowed determination of the graft content/level in purified EVA-g-PMMA. Grafting effect to compatibilization efficiency in EVA-g-PMMA was monitored by image analysis of gelation processes and determination of wetting angle. Single lap joint of adhesives/optical fibers were subjected to adhesive testing before and after aging on 60 degrees C for 60 h and 120 h. Thermogravimetry coupled with mass spectrometry showed different thermal stability and degradation pathways of adhesives, and reduced the degree of deacetylation of thermally treated EVA-g-PMMA adhesive. DSC analysis showed higher thermal stability of EVA-g-PMMA adhesive. Better mechanical properties of EVA-g-PMMA, i.e. 62.4% higher Charpy impact strength value in relation to EVA, was obtained.
PB  - Elsevier Sci Ltd, Oxford
T2  - International Journal of Adhesion and Adhesives
T1  - A new approach to compatibilization study of EVA/PMMA polymer blend used as an optical fibers adhesive: Mechanical, morphological and thermal properties
EP  - 20
SP  - 11
VL  - 81
DO  - 10.1016/j.ijadhadh.2017.11.002
ER  - 

@article{
author = "Tomić, Nataša Z. and Marinković, Aleksandar D. and Veljović, Djordje and Trifković, Kata and Lević, Steva and Radojević, Vesna and Jancić-Heinemann, Radmila",
year = "2018",
abstract = "Mechanical, morphological and thermal properties of optical fiber adhesives, based on poly(ethylene-co-vinyl acetate) (EVA) with 18 and 40% of vinyl acetate, polymer blend of EVA/poly(methyl methacrylate) (PMMA), and graft polymer, raw EVA-g-PMMA, prepared via in situ free radical polymerization, were studied. Extraction of PMMA homopolymer from raw EVA-g-PMMA produced purified EVA-g-PMMA, which enable quantitative determination of graft initiating centers by NMR spectroscopy. FTIR and image analysis allowed determination of the graft content/level in purified EVA-g-PMMA. Grafting effect to compatibilization efficiency in EVA-g-PMMA was monitored by image analysis of gelation processes and determination of wetting angle. Single lap joint of adhesives/optical fibers were subjected to adhesive testing before and after aging on 60 degrees C for 60 h and 120 h. Thermogravimetry coupled with mass spectrometry showed different thermal stability and degradation pathways of adhesives, and reduced the degree of deacetylation of thermally treated EVA-g-PMMA adhesive. DSC analysis showed higher thermal stability of EVA-g-PMMA adhesive. Better mechanical properties of EVA-g-PMMA, i.e. 62.4% higher Charpy impact strength value in relation to EVA, was obtained.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "International Journal of Adhesion and Adhesives",
title = "A new approach to compatibilization study of EVA/PMMA polymer blend used as an optical fibers adhesive: Mechanical, morphological and thermal properties",
pages = "20-11",
volume = "81",
doi = "10.1016/j.ijadhadh.2017.11.002"
}

Tomić, N. Z., Marinković, A. D., Veljović, D., Trifković, K., Lević, S., Radojević, V.,& Jancić-Heinemann, R.. (2018). A new approach to compatibilization study of EVA/PMMA polymer blend used as an optical fibers adhesive: Mechanical, morphological and thermal properties. in International Journal of Adhesion and Adhesives
Elsevier Sci Ltd, Oxford., 81, 11-20.
https://doi.org/10.1016/j.ijadhadh.2017.11.002

Tomić NZ, Marinković AD, Veljović D, Trifković K, Lević S, Radojević V, Jancić-Heinemann R. A new approach to compatibilization study of EVA/PMMA polymer blend used as an optical fibers adhesive: Mechanical, morphological and thermal properties. in International Journal of Adhesion and Adhesives. 2018;81:11-20.
doi:10.1016/j.ijadhadh.2017.11.002 .

Tomić, Nataša Z., Marinković, Aleksandar D., Veljović, Djordje, Trifković, Kata, Lević, Steva, Radojević, Vesna, Jancić-Heinemann, Radmila, "A new approach to compatibilization study of EVA/PMMA polymer blend used as an optical fibers adhesive: Mechanical, morphological and thermal properties" in International Journal of Adhesion and Adhesives, 81 (2018):11-20,
https://doi.org/10.1016/j.ijadhadh.2017.11.002 . .

TY  - JOUR
AU  - Zec, Jelena
AU  - Tomić, Nataša Z.
AU  - Zrilić, Milorad
AU  - Lević, Steva
AU  - Marinković, Aleksandar
AU  - Jancić-Heinemann, Radmila
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4694
AB  - Ultra-high molecular weight polyethylene (UHMWPE, PE)/oxidized PE (ox-PE) fibers and alumina reinforcement were used in preparation of poly (ethylene-co-vinyl acetate) (EVA)/hydrolyzed EVA (EVAOH) based composites. Different alumina particles were used: nanoparticles (n-Al2O3), whiskers (w-Al2O3), synthesized (mu-Al2O3) and the one doped with iron oxide (Fe-Al2O3). Modification of alumina with (3-glycidyloxypropyl)trimethoxysilane (GLYMO), without pretreatment (S) and subjected to hydrolysis (HS), produced Al2O3/S and Al2O3/HS particles. Optical microscopy was employed in determination of system compatibility. A high increase in tensile strength with 3% Fe-Al2O3/HS and n-Al2O3/HS was a result of improved Al2O3/matrix interfacial interactions in PE/EVAOH based composite.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Optimization of Al2O3 particle modification and UHMWPE fiber oxidation of EVA based hybrid composites: Compatibility, morphological and mechanical properties
EP  - 48
SP  - 36
VL  - 153
DO  - 10.1016/j.compositesb.2018.07.031
ER  - 

@article{
author = "Zec, Jelena and Tomić, Nataša Z. and Zrilić, Milorad and Lević, Steva and Marinković, Aleksandar and Jancić-Heinemann, Radmila",
year = "2018",
abstract = "Ultra-high molecular weight polyethylene (UHMWPE, PE)/oxidized PE (ox-PE) fibers and alumina reinforcement were used in preparation of poly (ethylene-co-vinyl acetate) (EVA)/hydrolyzed EVA (EVAOH) based composites. Different alumina particles were used: nanoparticles (n-Al2O3), whiskers (w-Al2O3), synthesized (mu-Al2O3) and the one doped with iron oxide (Fe-Al2O3). Modification of alumina with (3-glycidyloxypropyl)trimethoxysilane (GLYMO), without pretreatment (S) and subjected to hydrolysis (HS), produced Al2O3/S and Al2O3/HS particles. Optical microscopy was employed in determination of system compatibility. A high increase in tensile strength with 3% Fe-Al2O3/HS and n-Al2O3/HS was a result of improved Al2O3/matrix interfacial interactions in PE/EVAOH based composite.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Optimization of Al2O3 particle modification and UHMWPE fiber oxidation of EVA based hybrid composites: Compatibility, morphological and mechanical properties",
pages = "48-36",
volume = "153",
doi = "10.1016/j.compositesb.2018.07.031"
}

Zec, J., Tomić, N. Z., Zrilić, M., Lević, S., Marinković, A.,& Jancić-Heinemann, R.. (2018). Optimization of Al2O3 particle modification and UHMWPE fiber oxidation of EVA based hybrid composites: Compatibility, morphological and mechanical properties. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 153, 36-48.
https://doi.org/10.1016/j.compositesb.2018.07.031

Zec J, Tomić NZ, Zrilić M, Lević S, Marinković A, Jancić-Heinemann R. Optimization of Al2O3 particle modification and UHMWPE fiber oxidation of EVA based hybrid composites: Compatibility, morphological and mechanical properties. in Composites Part B-Engineering. 2018;153:36-48.
doi:10.1016/j.compositesb.2018.07.031 .

Zec, Jelena, Tomić, Nataša Z., Zrilić, Milorad, Lević, Steva, Marinković, Aleksandar, Jancić-Heinemann, Radmila, "Optimization of Al2O3 particle modification and UHMWPE fiber oxidation of EVA based hybrid composites: Compatibility, morphological and mechanical properties" in Composites Part B-Engineering, 153 (2018):36-48,
https://doi.org/10.1016/j.compositesb.2018.07.031 . .