CATIONIC POLYMERIZATION IN IODINE LIQUID SULFUR-DIOXIDE SYSTEM .1. THE POLYMERIZATION OF ALPHA-METHYLSTYRENE

被引：9

作者：

SOARES, BG

DASILVA, A

GOMES, AS

机构：

[1] Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Rio de Janeiro, 21945-970, RJ, Bl. J, Ilha do Fundão

来源：

POLYMER BULLETIN | 1992年 / 29卷 / 3-4期

关键词：

D O I：

10.1007/BF00944815

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 cationic polymerization of alpha-methylstyrene initiated by iodine was investigated in dichloromethane and liquid SO2. Reactions carried out in SO2 were faster with an increase of molecular weight at higher iodine concentration at -60-degrees-C. The increase of molecular weight with conversion and the values of average number of polymer chains less than theoretical suggest the presence of living or long-lived propagation species.

引用

页码：253 / 258

页数：6

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