Synthesis and characterization of poly(methyl methacrylate)/OMMT nanocomposites by γ-ray irradiation polymerization

被引：15
|
作者：
Zhang, WA
Shen, XF
Li, Y
Fang, Y [1 ]
机构：
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Anhua 230026, Peoples R China
[2] Anhui Univ, Dept Chem, Hefei 230039, Peoples R China
来源：
RADIATION PHYSICS AND CHEMISTRY | 2003年 / 67卷 / 05期
关键词：
nanocomposites; poly(methyl methacrylate); gamma-ray irradiation;
D O I：
10.1016/S0969-806X(03)00014-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：651 / 656
页数：6
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