LIVING CATIONIC POLYMERIZATION OF 2-CHLOROETHYL VINYL ETHER - KINETICS, MECHANISM AND APPLICATION TO POLYMER SYNTHESIS

被引:48
作者
HEROGUEZ, V [1 ]
DEFFIEUX, A [1 ]
FONTANILLE, M [1 ]
机构
[1] UNIV BORDEAUX 1,CNRS,CHIM POLYMERES ORGAN LAB,F-33405 TALENCE,FRANCE
来源
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1990年 / 32卷
关键词
D O I
10.1002/masy.19900320117
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 2‐chloroethyl vinyl ether initiated by HI/weak Lewis acid (I2 or ZnI2) systems has been studied from both a kinetic‐mechanistic and a synthetic viewpoint. At low temperature and in toluene as solvent, the polymerization proceeds via a living process and the kinetic order with respect to monomer varies according to the nature of the Lewis acid activator. This behaviour can be explained by the coordination of the Lewis acid with both the monomer and the chain‐end, the latter leading to a strong activation of the (Formula Presented.) ‐I bond towards monomer insertion. The living polymerization obtained from divinylether precursors leads to (Formula Presented.) ‐I ended telechelics, and their transformation into dihydroxytelechelic oligomers has been performed. The chemical modification of chloroalkyl side groups by phase transfer catalysis allows the attachment of specific groups without consumption of‐OH ends. Copyright © 1990 Hüthig & Wepf Verlag
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页码:199 / 216
页数:18
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