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Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization

Authorized Users Only
2009
Authors
Džunuzović, Enis
Marinović-Cincović, Milena
Vuković, J.
Jeremić, Katarina B.
Nedeljković, Jovan
Article (Published version)
Metadata
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Abstract
The surface of anatase TiO2 nanoparticles, obtained by the controlled hydrolysis of titanium tetrachloride, was modified by 6-palmitate ascorbic acid. The surface modified TiO2 nanoparticles were dispersed in methyl methacrylate and mixed with a appropriate amount of poly(methyl methacrylate) to obtain a syrup. The nano-composite sheets were made by bulk polymerization of the syrup in a glass sandwich cell using 2,2'-azobisisobutyronitrile as initiator. The molar masses and molar mass distributions of synthesized poly(methyl methacrylate) samples were determined by gel permeation chromatography. The content of unreacted double bonds in synthesized samples was determined by H-1 NMR spectroscopy. The influence of TiO2 nanoparticles on the thermal stability of the poly(methyl methacrylate) matrix was investigated using thermogravimetric analysis and differential scanning calorimetry. The synthesized samples of poly(methyl methacrylate) have different molar mass and polydispersity dependin...g on the content of the surface modified TiO2 nanoparticles. The values of glass transition temperature of so prepared nanocomposite samples were lower than for pure poly(methyl methacrylate), while the glass transition temperature of samples preheated in inert atmosphere was very similar to the glass transition temperature of pure poly(methyl methacrylate). The thermal stability of nanocomposite samples in nitrogen and air was different from thermal stability of pure poly(methyl methacrylate). POLYM. COMPOS., 30:737-742, 2009.

Source:
Polymer Composites, 2009, 30, 6, 737-742
Publisher:
  • Wiley-Blackwell, Malden
Funding / projects:
  • Sinteza i karakterizacija nanočestica i nanokompozita (RS-142066)
  • Sinteza i karakterizacija polimera i polimernih (nano)kompozita definisane molekulske i nadmolekulske strukture (RS-142023)

DOI: 10.1002/pc.20606

ISSN: 0272-8397

WoS: 000276059500008

Scopus: 2-s2.0-67049159526
[ Google Scholar ]
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35
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1524
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Džunuzović, Enis
AU  - Marinović-Cincović, Milena
AU  - Vuković, J.
AU  - Jeremić, Katarina B.
AU  - Nedeljković, Jovan
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1524
AB  - The surface of anatase TiO2 nanoparticles, obtained by the controlled hydrolysis of titanium tetrachloride, was modified by 6-palmitate ascorbic acid. The surface modified TiO2 nanoparticles were dispersed in methyl methacrylate and mixed with a appropriate amount of poly(methyl methacrylate) to obtain a syrup. The nano-composite sheets were made by bulk polymerization of the syrup in a glass sandwich cell using 2,2'-azobisisobutyronitrile as initiator. The molar masses and molar mass distributions of synthesized poly(methyl methacrylate) samples were determined by gel permeation chromatography. The content of unreacted double bonds in synthesized samples was determined by H-1 NMR spectroscopy. The influence of TiO2 nanoparticles on the thermal stability of the poly(methyl methacrylate) matrix was investigated using thermogravimetric analysis and differential scanning calorimetry. The synthesized samples of poly(methyl methacrylate) have different molar mass and polydispersity depending on the content of the surface modified TiO2 nanoparticles. The values of glass transition temperature of so prepared nanocomposite samples were lower than for pure poly(methyl methacrylate), while the glass transition temperature of samples preheated in inert atmosphere was very similar to the glass transition temperature of pure poly(methyl methacrylate). The thermal stability of nanocomposite samples in nitrogen and air was different from thermal stability of pure poly(methyl methacrylate). POLYM. COMPOS., 30:737-742, 2009.
PB  - Wiley-Blackwell, Malden
T2  - Polymer Composites
T1  - Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization
EP  - 742
IS  - 6
SP  - 737
VL  - 30
DO  - 10.1002/pc.20606
UR  - conv_3366
ER  - 
@article{
author = "Džunuzović, Enis and Marinović-Cincović, Milena and Vuković, J. and Jeremić, Katarina B. and Nedeljković, Jovan",
year = "2009",
abstract = "The surface of anatase TiO2 nanoparticles, obtained by the controlled hydrolysis of titanium tetrachloride, was modified by 6-palmitate ascorbic acid. The surface modified TiO2 nanoparticles were dispersed in methyl methacrylate and mixed with a appropriate amount of poly(methyl methacrylate) to obtain a syrup. The nano-composite sheets were made by bulk polymerization of the syrup in a glass sandwich cell using 2,2'-azobisisobutyronitrile as initiator. The molar masses and molar mass distributions of synthesized poly(methyl methacrylate) samples were determined by gel permeation chromatography. The content of unreacted double bonds in synthesized samples was determined by H-1 NMR spectroscopy. The influence of TiO2 nanoparticles on the thermal stability of the poly(methyl methacrylate) matrix was investigated using thermogravimetric analysis and differential scanning calorimetry. The synthesized samples of poly(methyl methacrylate) have different molar mass and polydispersity depending on the content of the surface modified TiO2 nanoparticles. The values of glass transition temperature of so prepared nanocomposite samples were lower than for pure poly(methyl methacrylate), while the glass transition temperature of samples preheated in inert atmosphere was very similar to the glass transition temperature of pure poly(methyl methacrylate). The thermal stability of nanocomposite samples in nitrogen and air was different from thermal stability of pure poly(methyl methacrylate). POLYM. COMPOS., 30:737-742, 2009.",
publisher = "Wiley-Blackwell, Malden",
journal = "Polymer Composites",
title = "Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization",
pages = "742-737",
number = "6",
volume = "30",
doi = "10.1002/pc.20606",
url = "conv_3366"
}
Džunuzović, E., Marinović-Cincović, M., Vuković, J., Jeremić, K. B.,& Nedeljković, J.. (2009). Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization. in Polymer Composites
Wiley-Blackwell, Malden., 30(6), 737-742.
https://doi.org/10.1002/pc.20606
conv_3366
Džunuzović E, Marinović-Cincović M, Vuković J, Jeremić KB, Nedeljković J. Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization. in Polymer Composites. 2009;30(6):737-742.
doi:10.1002/pc.20606
conv_3366 .
Džunuzović, Enis, Marinović-Cincović, Milena, Vuković, J., Jeremić, Katarina B., Nedeljković, Jovan, "Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization" in Polymer Composites, 30, no. 6 (2009):737-742,
https://doi.org/10.1002/pc.20606 .,
conv_3366 .

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