TY  - JOUR
AU  - Brkovic, Danijela V.
AU  - Pavlović, Vladimir B.
AU  - Pavlović, Vera P.
AU  - Obradovic, Nina
AU  - Mitrić, Miodrag
AU  - Stevanović, Sanja
AU  - Vlahovic, Branislav
AU  - Uskoković, Petar S.
AU  - Marinković, Aleksandar D.
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2152
AB  - The structural characteristics of polymer nanocomposites with functionalized multiwall carbon nanotubes (MWCNTs) in poly(methyl methacrylate) matrix have been studied in relation to nanofiller loading and surface functionality. Different functional groups have been covalently attached on the MWCNTs sidewalls in order to induce interfacial interactions at nanofiller/polymer interface, which resulted in an improved nanomechanical features. Structural properties of nanocomposites, studied with XRD and Raman analysis, indicated the most pronounced decrease in a degree of amorphousness for samples containing 0.5 and 1 wt% of MWCNTs functionalized with dapsone (dapson-MWCNT) and diethyl malonate (dem-MWCNT). SEM and TEM micrographs confirmed improved dispersibility of the MWCNTs modified with aromatic structure of dapsone inside PMMA matrix. A significant increase in a glass transition temperature of over 60 degrees C has been found for the 1 wt% dapson-MWCNT nanocomposite. Additional modification of dapson-MWCNT by further increasing aromaticity and voluminosity of attached moiety (fid-MWCNT), showed 30 degrees C increases in a glass transition temperature at 4 wt% of nanofiller loading, which is similar to shift of 37 degrees C with loading of MWCNTs modified with ester terminal group. A maximum increase of 56% of reduced modulus and 86% of hardness was obtained for 1 wt% loading of dapson-MWCNT nanofiller.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Structural Properties of the Multiwall Carbon Nanotubes/Poly(Methyl Methacrylate) Nanocomposites: Effect of the Multiwall Carbon Nanotubes Covalent Functionalization
VL  - 38
DO  - 10.1002/pc.23996
ER  - 

@article{
author = "Brkovic, Danijela V. and Pavlović, Vladimir B. and Pavlović, Vera P. and Obradovic, Nina and Mitrić, Miodrag and Stevanović, Sanja and Vlahovic, Branislav and Uskoković, Petar S. and Marinković, Aleksandar D.",
year = "2017",
abstract = "The structural characteristics of polymer nanocomposites with functionalized multiwall carbon nanotubes (MWCNTs) in poly(methyl methacrylate) matrix have been studied in relation to nanofiller loading and surface functionality. Different functional groups have been covalently attached on the MWCNTs sidewalls in order to induce interfacial interactions at nanofiller/polymer interface, which resulted in an improved nanomechanical features. Structural properties of nanocomposites, studied with XRD and Raman analysis, indicated the most pronounced decrease in a degree of amorphousness for samples containing 0.5 and 1 wt% of MWCNTs functionalized with dapsone (dapson-MWCNT) and diethyl malonate (dem-MWCNT). SEM and TEM micrographs confirmed improved dispersibility of the MWCNTs modified with aromatic structure of dapsone inside PMMA matrix. A significant increase in a glass transition temperature of over 60 degrees C has been found for the 1 wt% dapson-MWCNT nanocomposite. Additional modification of dapson-MWCNT by further increasing aromaticity and voluminosity of attached moiety (fid-MWCNT), showed 30 degrees C increases in a glass transition temperature at 4 wt% of nanofiller loading, which is similar to shift of 37 degrees C with loading of MWCNTs modified with ester terminal group. A maximum increase of 56% of reduced modulus and 86% of hardness was obtained for 1 wt% loading of dapson-MWCNT nanofiller.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Structural Properties of the Multiwall Carbon Nanotubes/Poly(Methyl Methacrylate) Nanocomposites: Effect of the Multiwall Carbon Nanotubes Covalent Functionalization",
volume = "38",
doi = "10.1002/pc.23996"
}

Brkovic, D. V., Pavlović, V. B., Pavlović, V. P., Obradovic, N., Mitrić, M., Stevanović, S., Vlahovic, B., Uskoković, P. S.,& Marinković, A. D.. (2017). Structural Properties of the Multiwall Carbon Nanotubes/Poly(Methyl Methacrylate) Nanocomposites: Effect of the Multiwall Carbon Nanotubes Covalent Functionalization. in Polymer Composites
Wiley, Hoboken., 38.
https://doi.org/10.1002/pc.23996

Brkovic DV, Pavlović VB, Pavlović VP, Obradovic N, Mitrić M, Stevanović S, Vlahovic B, Uskoković PS, Marinković AD. Structural Properties of the Multiwall Carbon Nanotubes/Poly(Methyl Methacrylate) Nanocomposites: Effect of the Multiwall Carbon Nanotubes Covalent Functionalization. in Polymer Composites. 2017;38.
doi:10.1002/pc.23996 .

Brkovic, Danijela V., Pavlović, Vladimir B., Pavlović, Vera P., Obradovic, Nina, Mitrić, Miodrag, Stevanović, Sanja, Vlahovic, Branislav, Uskoković, Petar S., Marinković, Aleksandar D., "Structural Properties of the Multiwall Carbon Nanotubes/Poly(Methyl Methacrylate) Nanocomposites: Effect of the Multiwall Carbon Nanotubes Covalent Functionalization" in Polymer Composites, 38 (2017),
https://doi.org/10.1002/pc.23996 . .

TY  - JOUR
AU  - Brkovic, Danijela V
AU  - Avramov Ivić, Milka
AU  - Rakić, Vesna M.
AU  - Valentini, Luca
AU  - Uskoković, Petar S.
AU  - Marinković, Aleksandar D.
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1663
AB  - Covalent sidewall functionalization of multiwalled carbon nanotubes (MWCNTs) has been performed using two approaches, direct and indirect cycloaddition through diethyl malonate, based on the Bingel reaction. The results revealed that functionalized MWCNTs demonstrated enhanced electrical properties and significantly lower sheet resistance, especially after electric field thermal assisted annealing at 80 degrees C was performed. The presence of 1,3-dicarbonyl compounds caused the surface of MWCNTs to be more hydrophilic, approachable for the electrolyte and improved the capacitance performance of Au/MWCNTs electrodes. The modified MWCNTs have been incorporated into nanocomposites by using solution mixing method with polyaniline and drop-casting resulting mixture on the paper substrate. The reduction in the sheet resistance with increasing the content of MWCNTs in the prepared nanocomposite films has been achieved.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Journal of Physics and Chemistry of Solids
T1  - Electrical and morphological characterization of multiwalled carbon nanotubes functionalized via the Bingel reaction
VL  - 83
SP  - 121
EP  - 134
DO  - 10.1016/j.jpcs.2015.04.004
ER  - 

@article{
author = "Brkovic, Danijela V and Avramov Ivić, Milka and Rakić, Vesna M. and Valentini, Luca and Uskoković, Petar S. and Marinković, Aleksandar D.",
year = "2015",
abstract = "Covalent sidewall functionalization of multiwalled carbon nanotubes (MWCNTs) has been performed using two approaches, direct and indirect cycloaddition through diethyl malonate, based on the Bingel reaction. The results revealed that functionalized MWCNTs demonstrated enhanced electrical properties and significantly lower sheet resistance, especially after electric field thermal assisted annealing at 80 degrees C was performed. The presence of 1,3-dicarbonyl compounds caused the surface of MWCNTs to be more hydrophilic, approachable for the electrolyte and improved the capacitance performance of Au/MWCNTs electrodes. The modified MWCNTs have been incorporated into nanocomposites by using solution mixing method with polyaniline and drop-casting resulting mixture on the paper substrate. The reduction in the sheet resistance with increasing the content of MWCNTs in the prepared nanocomposite films has been achieved.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Journal of Physics and Chemistry of Solids",
title = "Electrical and morphological characterization of multiwalled carbon nanotubes functionalized via the Bingel reaction",
volume = "83",
pages = "121-134",
doi = "10.1016/j.jpcs.2015.04.004"
}

Brkovic, D. V., Avramov Ivić, M., Rakić, V. M., Valentini, L., Uskoković, P. S.,& Marinković, A. D.. (2015). Electrical and morphological characterization of multiwalled carbon nanotubes functionalized via the Bingel reaction. in Journal of Physics and Chemistry of Solids
Oxford : Pergamon-Elsevier Science Ltd., 83, 121-134.
https://doi.org/10.1016/j.jpcs.2015.04.004

Brkovic DV, Avramov Ivić M, Rakić VM, Valentini L, Uskoković PS, Marinković AD. Electrical and morphological characterization of multiwalled carbon nanotubes functionalized via the Bingel reaction. in Journal of Physics and Chemistry of Solids. 2015;83:121-134.
doi:10.1016/j.jpcs.2015.04.004 .

Brkovic, Danijela V, Avramov Ivić, Milka, Rakić, Vesna M., Valentini, Luca, Uskoković, Petar S., Marinković, Aleksandar D., "Electrical and morphological characterization of multiwalled carbon nanotubes functionalized via the Bingel reaction" in Journal of Physics and Chemistry of Solids, 83 (2015):121-134,
https://doi.org/10.1016/j.jpcs.2015.04.004 . .