AQUEOUS POLYMERIZATION ON CLAY SURFACES .4. EFFECTS OF HYDROGEN MONTMORILLONITE, MONOMER CONCENTRATIONS, AND TEMPERATURE ON THE POLYMERIZATION OF METHYL-METHACRYLATE

被引：9

作者：

BHATTACHARYA, J ^{[1
]}

TALAPATRA, S ^{[1
]}

SAHA, SK ^{[1
]}

GUHANIYOGI, SC ^{[1
]}

机构：

[1] UNIV AKRON,INST POLYMER SCI,AKRON,OH 44325

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 39卷 / 11-12期

关键词：

D O I：

10.1002/app.1990.070391104

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The polymerization of methyl methacrylate in aqueous montmorillonite suspension with thiourea was studied. The polymerization initiated on the montmorillonite surface following the adsorption of thiourea and the monomer. A 20% increase in the basal spacings of the clay mineral was observed. A large fraction of the polymer was nonextractable and was found to be thermally more stable than the extractables. The rate of the polymerization increased with increasing amounts of clay, thiourea, and followed one‐half order on the latter. The apparent energy of activation (Ea) of the system was characteristic of redox free radical polymerization. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：2237 / 2244

页数：8

共 17 条

[1]

ABDELGHAFFAR MA, 1987, ANGEW MAKROMOL CHEM, V155, P21

[2] STUDIES IN POLYMERIZATION .6. ACRYLONITRILE - THE BEHAVIOUR OF FREE RADICALS IN HETEROGENEOUS SYSTEMS [J].