CARBENIUM IONS, ONIUM IONS, AND COVALENT SPECIES IN THE CATIONIC POLYMERIZATION OF ALKENES

被引：19

作者：

MATYJASZEWSKI, K

机构：

[1] Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, 15213

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1992年 / 60卷

关键词：

D O I：

10.1002/masy.19920600110

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 importance of exchange reactions between various types of active species present in the cationic polymerization of alkenes is addressed. Reactivities of carbocations, corresponding ion pairs, onium ions, and covalent species are discussed for model systems and in real polymerization. The influence of various parameters on the equilibria between carbenium ions, onium ions, and covalent species is described. Rate constants of the isomerization of active sites are estimated and correlated with polydispersities. General ways to improve control of cationic polymerization of alkenes are discussed.

引用

页码：107 / 117

页数：11

共 36 条

[1] KINETICS OF THE REACTIONS OF LASER-FLASH PHOTOLYTICALLY GENERATED CARBENIUM IONS WITH ALKYL AND SILYL ENOL ETHERS - COMPARISON WITH THE REACTIVITY TOWARD ALKENES, ALLYLSILANES AND ALCOHOLS [J].