GROUP TRANSFER AND ANIONIC-POLYMERIZATION - A CRITICAL COMPARISON

被引：59

作者：

MULLER, AHE

机构：

[1] Institut Für Physikalische Chemie, Universität Mainz, Mainz

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1990年 / 32卷

关键词：

D O I：

10.1002/masy.19900320109

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 mechanism of group transfer polymerization (GTP) of methacrylates in THF is investigated by using data on kinetics of homo‐ and copolymerization, polymer microstructure and molecular weight distribution. By comparison with corresponding data on anionic polymerization it is concluded that the mechanisms of monomer addition to the active chain end is very similar for both anionic and group transfer polymerization and that GTP is ionic in character. On the other hand, GTP uniquely is characterized by the existence of a catalyst exchange equilibrium. The position of this equilibrium determines the rates of polymerization, and the dynamics determine the molecular weight distribution. Copyright © 1990 Hüthig & Wepf Verlag

引用

页码：87 / 104

页数：18

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