SPONTANEOUS COPOLYMERIZATION OF ALKOXYALLENES WITH ARYL ISOCYANATES THROUGH ZWITTERIONIC INTERMEDIATES

被引：4

作者：

MIZUYA, J ^{[1
]}

YOKOZAWA, T ^{[1
]}

ENDO, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

来源：

MACROMOLECULES | 1991年 / 24卷 / 09期

关键词：

D O I：

10.1021/ma00009a027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Alkoxyallene (1) and aryl isocyanates (2) underwent spontaneous copolymerization at 80-degrees-C to obtain a polyamide consisting of three type of units, accompanying the typical formation of beta-propiolactam derivatives. The behavior of the copolymerization was dependent on reaction conditions (solvent and monomer feed ratio) and/or the electron-withdrawing capacity of the para substituent of aryl isocyanates. Especially, copolymerization of 1 with the more electrophilic 4-chlorophenyl isocyanate yielded an alternating copolymer. It might be suggested that the spontaneous copolymerization of 1 and 2 would proceed through zwitterionic intermediates generated from 1 and 2.

引用

页码：2299 / 2301

页数：3

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