期刊
RADIATION PHYSICS AND CHEMISTRY
卷 67, 期 5, 页码 651-656出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0969-806X(03)00014-8
关键词
nanocomposites; poly(methyl methacrylate); gamma-ray irradiation
Organophilic montmorillonite (OMMT) was synthesized by cationic exchange between Na-MMT and cetyltrimethylammonium bromide in an aqueous solution. Poly(methyl methacrylate)(PMMA)/(OMMT) nanocomposites was prepared by gamma-ray irradiation polymerization. The dispersion degree and the intercalation spacing of these nanocomposites were investigated with the X-ray diffraction and high-resolution transmission electron microscopy, respectively. The thermal stabilities of the samples were studied by the thermal gravimetric analysis. The nanocomposites had higher storage modulus and higher glass transition temperature (T-g) than the pure PMMA, which were measured by dynamic mechanical analysis. (C) 2003 Elsevier Science Ltd. All rights reserved.
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