@article{
author = "Džunuzović, Enis and Marinović -Cincović, M. and Vuković, Jasna and Jeremić, K. 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 nanocomposite
sheets were made by bulk polymerization of
the syrup in a glass sandwich cell using 2,20-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 1H 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",
publisher = "Wiley",
journal = "Polymer Composites",
title = "Thermal Properties of PMMA/TiO2 Nanocomposites Prepared by In-Situ Bulk Polymerization",
volume = "30",
number = "6",
pages = "737-742",
doi = "10.1002/pc.20606"
}
