AQUEOUS POLYMERIZATION ON CLAY SURFACES .5. ROLE OF LATTICE SUBSTITUTED IRON IN MONTMORILLONITE IN POLYMERIZING METHYL-METHACRYLATE IN THE PRESENCE OF THIOUREA

被引:3
|
作者
BHATTACHARYYA, J [1 ]
SAHA, SK [1 ]
GUHANIYOGI, SC [1 ]
机构
[1] UNIV AKRON,INST POLYMER SCI,AKRON,OH 44325
关键词
8;
D O I
10.1002/pola.1990.080280902
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 aqueous polymerization of methyl metacrylate in the presence of thiourea and hydrogen montmorillonite was initiated by radicals generated in situ. A part of the polymer was bound to the clay. Electrochemical analysis by cyclic voltammetry on this system and FeCl3/thiourea indicated that a slow one‐electron transfer process was responsible for the formation of the amidosulfenyl radical. The oxidant in the clay was lattice substituted Fe3+. Copyright © 1990 John Wiley & Sons, Inc.
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页码:2249 / 2254
页数:6
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