TY  - JOUR
AU  - Džunuzović, Enis S.
AU  - Ćirjaković, Stefan
AU  - Kovač, Tijana
AU  - Tomić, Miloš
AU  - Dapčević, Aleksandra
AU  - Džunuzović, Jasna
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2275
AB  - The surface of anatase TiO2 nanoparticles was modified with in situ synthesized imine, based on 3,4-dihydroxybenzaldehyde and octadecylamine. The modified TiO2 nanoparticles were investigated using FTIR and UV-Vis spectroscopy, which confirmed the formation of the charge transfer complex between imine and surface of TiO2 nanoparticles by the reaction of surface Ti atoms with hydroxyl groups of a modifying agent. TiO2 nanoparticles modified with imine were further applied as a filler for the preparation of epoxy based nanocomposites. Thermal and mechani­cal properties of the prepared nanocomposites were examined using the dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis and hardness measurements. The obtained results have shown that modified TiO2 nanoparticles have no significant influence on the glass transition temperature and that they slow down thermo-oxidative degradation of epoxy resin in the first stage and increase hardness of the crosslinked epoxy resin.
AB  - Površina nanočestica TiO2 modifikovana je 'in situ' sintetisanim iminom na bazi 3,4-dihidroksibenzaldehida i oktadecilamina. Modifikovane TiO2 nanočestice su ispitivane primenom FTIR i UV-Vis spektroskopije, čime je potvrđeno formiran­je 'charge transfer' kompleksa između imina i površine TiO2 nanočestica preko reakcije Ti atoma na površini čestica sa hidroksilnim grupama modifikatora. Modifikovane TiO2 nanočestice su zatim iskorišćene kao punioci za pripremu nanokompozita na bazi epoksidne smole. Termička i mehanička svojstva pripremljenih na­nokompozita su ispitana primenom dinamičko mehaničke analize, diferencijalne skenirajuće kalorimetrije, termogravimetrijske analize i ispitivanjem njihove tvrdoće. Dobijeni rezultati su pokazali da TiO2 nanočestice površinski modifikovane iminom ne utiču značajno na temperaturu ostakljivanja epoksidne smole, da usporavaju termooksidativnu degradaciju u prvom stupnju i da povećavaju tvrdoću umrežene epoksidne smole.
PB  - Tehnološki fakultet, Leskovac
T2  - Advanced Technologies
T1  - Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin
T1  - Nanočestice titan-dioksida površinski modifikovane iminom kao punioci za epoksidnu smolu
VL  - 7
IS  - 2
SP  - 46
EP  - 53
DO  - 10.5937/SavTeh1802046D
ER  - 

@article{
author = "Džunuzović, Enis S. and Ćirjaković, Stefan and Kovač, Tijana and Tomić, Miloš and Dapčević, Aleksandra and Džunuzović, Jasna",
year = "2018",
abstract = "The surface of anatase TiO2 nanoparticles was modified with in situ synthesized imine, based on 3,4-dihydroxybenzaldehyde and octadecylamine. The modified TiO2 nanoparticles were investigated using FTIR and UV-Vis spectroscopy, which confirmed the formation of the charge transfer complex between imine and surface of TiO2 nanoparticles by the reaction of surface Ti atoms with hydroxyl groups of a modifying agent. TiO2 nanoparticles modified with imine were further applied as a filler for the preparation of epoxy based nanocomposites. Thermal and mechani­cal properties of the prepared nanocomposites were examined using the dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis and hardness measurements. The obtained results have shown that modified TiO2 nanoparticles have no significant influence on the glass transition temperature and that they slow down thermo-oxidative degradation of epoxy resin in the first stage and increase hardness of the crosslinked epoxy resin., Površina nanočestica TiO2 modifikovana je 'in situ' sintetisanim iminom na bazi 3,4-dihidroksibenzaldehida i oktadecilamina. Modifikovane TiO2 nanočestice su ispitivane primenom FTIR i UV-Vis spektroskopije, čime je potvrđeno formiran­je 'charge transfer' kompleksa između imina i površine TiO2 nanočestica preko reakcije Ti atoma na površini čestica sa hidroksilnim grupama modifikatora. Modifikovane TiO2 nanočestice su zatim iskorišćene kao punioci za pripremu nanokompozita na bazi epoksidne smole. Termička i mehanička svojstva pripremljenih na­nokompozita su ispitana primenom dinamičko mehaničke analize, diferencijalne skenirajuće kalorimetrije, termogravimetrijske analize i ispitivanjem njihove tvrdoće. Dobijeni rezultati su pokazali da TiO2 nanočestice površinski modifikovane iminom ne utiču značajno na temperaturu ostakljivanja epoksidne smole, da usporavaju termooksidativnu degradaciju u prvom stupnju i da povećavaju tvrdoću umrežene epoksidne smole.",
publisher = "Tehnološki fakultet, Leskovac",
journal = "Advanced Technologies",
title = "Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin, Nanočestice titan-dioksida površinski modifikovane iminom kao punioci za epoksidnu smolu",
volume = "7",
number = "2",
pages = "46-53",
doi = "10.5937/SavTeh1802046D"
}

Džunuzović, E. S., Ćirjaković, S., Kovač, T., Tomić, M., Dapčević, A.,& Džunuzović, J.. (2018). Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin. in Advanced Technologies
Tehnološki fakultet, Leskovac., 7(2), 46-53.
https://doi.org/10.5937/SavTeh1802046D

Džunuzović ES, Ćirjaković S, Kovač T, Tomić M, Dapčević A, Džunuzović J. Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin. in Advanced Technologies. 2018;7(2):46-53.
doi:10.5937/SavTeh1802046D .

Džunuzović, Enis S., Ćirjaković, Stefan, Kovač, Tijana, Tomić, Miloš, Dapčević, Aleksandra, Džunuzović, Jasna, "Titanium dioxide nanoparticles surface modified with imine as fillers for epoxy resin" in Advanced Technologies, 7, no. 2 (2018):46-53,
https://doi.org/10.5937/SavTeh1802046D . .

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  - CHAP
AU  - Đinović, Zoran
AU  - Tomić, Miloš
AU  - Manojlović, Lazo
AU  - Lazić, Žarko
AU  - Smiljanić, Milče M.
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4442
AB  - We presented here one contact-less optical technique based on low-coherence interferometry for measurement of thickness and uniformity of Si membranes. We performed a single-mode fiber-optic sensing configuration that is also applicable for the in situ measurement of membrane thickness. Space resolution was defined by diameter of spot of the impinging light of about 20 µm. The accuracy of the technique is about 100 nm.
PB  - IntechOpen
T2  - Micro Electronic and Mechanical Systems
T1  - Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry
SP  - 51
EP  - 60
DO  - 10.5772/7003
ER  - 

@inbook{
author = "Đinović, Zoran and Tomić, Miloš and Manojlović, Lazo and Lazić, Žarko and Smiljanić, Milče M.",
year = "2008",
abstract = "We presented here one contact-less optical technique based on low-coherence interferometry for measurement of thickness and uniformity of Si membranes. We performed a single-mode fiber-optic sensing configuration that is also applicable for the in situ measurement of membrane thickness. Space resolution was defined by diameter of spot of the impinging light of about 20 µm. The accuracy of the technique is about 100 nm.",
publisher = "IntechOpen",
journal = "Micro Electronic and Mechanical Systems",
booktitle = "Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry",
pages = "51-60",
doi = "10.5772/7003"
}

Đinović, Z., Tomić, M., Manojlović, L., Lazić, Ž.,& Smiljanić, M. M.. (2008). Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry. in Micro Electronic and Mechanical Systems
IntechOpen., 51-60.
https://doi.org/10.5772/7003

Đinović Z, Tomić M, Manojlović L, Lazić Ž, Smiljanić MM. Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry. in Micro Electronic and Mechanical Systems. 2008;:51-60.
doi:10.5772/7003 .

Đinović, Zoran, Tomić, Miloš, Manojlović, Lazo, Lazić, Žarko, Smiljanić, Milče M., "Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry" in Micro Electronic and Mechanical Systems (2008):51-60,
https://doi.org/10.5772/7003 . .

TY  - CONF
AU  - Đinović, Zoran
AU  - Tomić, Miloš
AU  - Manojlović, Lazo
AU  - Lazić, Žarko
AU  - Smiljanić, Milče
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/422
AB  - In this paper we present a contactless technique for thickness measurement of chemically etched Si membranes. This technique is based on low-coherence interferometry performed by single-mode fiber-optic sensing configuration. We are able to measure the thickness of Si membranes with accuracy of about 40 run. We used the proposed technique for the fast measurement of thickness uniformity of central position of Si membranes with overall dimensions of 2x2 mm(2) all around one 3 inch (100) Si wafer with starting thickness of 380 Iim. Additionally, we measured the thickness uniformity of several membranes with central boss by scanning. The accuracy of the technique is about 100 nm.
PB  - Institute of Electrical and Electronics Engineers Inc.
C3  - 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings
T1  - Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry
SP  - 321
DO  - 10.1109/ICMEL.2008.4559286
ER  - 

@conference{
author = "Đinović, Zoran and Tomić, Miloš and Manojlović, Lazo and Lazić, Žarko and Smiljanić, Milče",
year = "2008",
abstract = "In this paper we present a contactless technique for thickness measurement of chemically etched Si membranes. This technique is based on low-coherence interferometry performed by single-mode fiber-optic sensing configuration. We are able to measure the thickness of Si membranes with accuracy of about 40 run. We used the proposed technique for the fast measurement of thickness uniformity of central position of Si membranes with overall dimensions of 2x2 mm(2) all around one 3 inch (100) Si wafer with starting thickness of 380 Iim. Additionally, we measured the thickness uniformity of several membranes with central boss by scanning. The accuracy of the technique is about 100 nm.",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
journal = "26th International Conference on Microelectronics, Vols 1 and 2, Proceedings",
title = "Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry",
pages = "321",
doi = "10.1109/ICMEL.2008.4559286"
}

Đinović, Z., Tomić, M., Manojlović, L., Lazić, Ž.,& Smiljanić, M.. (2008). Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry. in 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings
Institute of Electrical and Electronics Engineers Inc.., 321.
https://doi.org/10.1109/ICMEL.2008.4559286

Đinović Z, Tomić M, Manojlović L, Lazić Ž, Smiljanić M. Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry. in 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings. 2008;:321.
doi:10.1109/ICMEL.2008.4559286 .

Đinović, Zoran, Tomić, Miloš, Manojlović, Lazo, Lazić, Žarko, Smiljanić, Milče, "Non-contact measurement of thickness uniformity of chemically etched Si membranes by fiber-optic low-coherence interferometry" in 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings (2008):321,
https://doi.org/10.1109/ICMEL.2008.4559286 . .