Surface modified TiO2 nanoparticles dissolved in toluene were encapsulated in PMMA by in situ radical polymerization of methyl methacrylate initiated by 2,2'-azobisisobutyronitrile. The surface modification of the TiO2 nanoparticles (average diameter of 4.5 nm) was achieved by the formation of a charge transfer complex between TiO2 nanoparticles and 6-palmitate ascorbic acid. The surface modified TiO2/nanoparticles were characterized using UV-Vis and FTIR spectroscopy, while the obtained polymer nanocomposites were characterized using reflection and H-1 NMR spectroscopy, as well as gel permeation chromatography. The influence of the TiO2 nanoparticles on the thermal properties of the PMMA matrix was investigated using thermo-gravimetric analysis and differential scanning calorimetry. The glass transition temperature of the polymer was not influenced by the presence of the nanoparticles while the thermal stability was significantly improved.
TY - JOUR
AU - Džunuzović, Enis
AU - Jeremić, Katarina B.
AU - Nedeljković, Jovan
PY - 2007
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1134
AB - Surface modified TiO2 nanoparticles dissolved in toluene were encapsulated in PMMA by in situ radical polymerization of methyl methacrylate initiated by 2,2'-azobisisobutyronitrile. The surface modification of the TiO2 nanoparticles (average diameter of 4.5 nm) was achieved by the formation of a charge transfer complex between TiO2 nanoparticles and 6-palmitate ascorbic acid. The surface modified TiO2/nanoparticles were characterized using UV-Vis and FTIR spectroscopy, while the obtained polymer nanocomposites were characterized using reflection and H-1 NMR spectroscopy, as well as gel permeation chromatography. The influence of the TiO2 nanoparticles on the thermal properties of the PMMA matrix was investigated using thermo-gravimetric analysis and differential scanning calorimetry. The glass transition temperature of the polymer was not influenced by the presence of the nanoparticles while the thermal stability was significantly improved.
PB - Pergamon-Elsevier Science Ltd, Oxford
T2 - European Polymer Journal
T1 - In situ radical polymerization of methyl methacrylate in a solution of surface modified TiO2 and nanoparticles
EP - 3726
IS - 9
SP - 3719
VL - 43
DO - 10.1016/j.eurpolymj.2007.06.026
ER -
@article{
author = "Džunuzović, Enis and Jeremić, Katarina B. and Nedeljković, Jovan",
year = "2007",
abstract = "Surface modified TiO2 nanoparticles dissolved in toluene were encapsulated in PMMA by in situ radical polymerization of methyl methacrylate initiated by 2,2'-azobisisobutyronitrile. The surface modification of the TiO2 nanoparticles (average diameter of 4.5 nm) was achieved by the formation of a charge transfer complex between TiO2 nanoparticles and 6-palmitate ascorbic acid. The surface modified TiO2/nanoparticles were characterized using UV-Vis and FTIR spectroscopy, while the obtained polymer nanocomposites were characterized using reflection and H-1 NMR spectroscopy, as well as gel permeation chromatography. The influence of the TiO2 nanoparticles on the thermal properties of the PMMA matrix was investigated using thermo-gravimetric analysis and differential scanning calorimetry. The glass transition temperature of the polymer was not influenced by the presence of the nanoparticles while the thermal stability was significantly improved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "In situ radical polymerization of methyl methacrylate in a solution of surface modified TiO2 and nanoparticles",
pages = "3726-3719",
number = "9",
volume = "43",
doi = "10.1016/j.eurpolymj.2007.06.026"
}
Džunuzović, E., Jeremić, K. B.,& Nedeljković, J.. (2007). In situ radical polymerization of methyl methacrylate in a solution of surface modified TiO2 and nanoparticles. in European Polymer Journal
Pergamon-Elsevier Science Ltd, Oxford., 43(9), 3719-3726.
https://doi.org/10.1016/j.eurpolymj.2007.06.026
Džunuzović E, Jeremić KB, Nedeljković J. In situ radical polymerization of methyl methacrylate in a solution of surface modified TiO2 and nanoparticles. in European Polymer Journal. 2007;43(9):3719-3726.
doi:10.1016/j.eurpolymj.2007.06.026 .
Džunuzović, Enis, Jeremić, Katarina B., Nedeljković, Jovan, "In situ radical polymerization of methyl methacrylate in a solution of surface modified TiO2 and nanoparticles" in European Polymer Journal, 43, no. 9 (2007):3719-3726,
https://doi.org/10.1016/j.eurpolymj.2007.06.026 . .
