PROPAGATION AND TERMINATION RATE CONSTANTS OF N-TERT-ALKYLMALEIMIDE AND N-TRIALKYLSILYLMALEIMIDE IN RADICAL POLYMERIZATION INITIATED WITH 2,2'-AZOBISISOBUTYRONITRILE

被引：13

作者：

MATSUMOTO, A

OKI, Y

OTSU, T

机构：

[1] Department of Applied Chemistry, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka

来源：

POLYMER JOURNAL | 1993年 / 25卷 / 03期

关键词：

N-SUBSTITUTED MALEIMIDE; RADICAL POLYMERIZATION; ELECTRON SPIN RESONANCE; PROPAGATION; TERMINATION; RATE CONSTANT;

D O I：

10.1295/polymj.25.237

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Radical polymerizations of N-tert-alkylmaleimide (tRMI) and N-trialkylsilylmaleimide (RSiMI) were investigated kinetically by means of electron spin resonance (ESR) spectroscopy. By the use of the steady-state concentrations of the polymer radicals determined by ESR, the propagation and termination rate constants (k(p) and k(t)) were evaluated. k(t) was also determined by analysis of the non-steady state. tRMI and RSiMI were revealed to have similar k(p) depending on the bulkiness of the N-substituents, while k(t) for RSiMI were about ten times larger than those for tRMI. The relationships between k(p) and k(t) values and the structure of the N-substituents were discussed.

引用

页码：237 / 243

页数：7

共 24 条

[1] GALVINOXYL (2,6-DI-TERT-BUTYL-ALPHA-(3,5-DI-TERT-BUTYL-4-OXO-2,5-CYCLOHEXADIENE-1-YLIDENE)-P-TOLYLOXY) AS A SCAVENGER OF SHORTER-LIVED FREE RADICALS [J].