羟胺类化合物在烯烃单体自由基聚合反应中形成氮氧自由基的ESR研究

波谱学杂志 ›› 1989, Vol. 6 ›› Issue (3): 369-376.

羟胺类化合物在烯烃单体自由基聚合反应中形成氮氧自由基的ESR研究

汪汉卿¹, 冯良波¹, 蔡邦华¹, 张自义², 吕志珍², 李兆陇²

1. 中国科学院兰州化学物理研究所;
2. 兰州大学化学系

收稿日期:1989-01-23 出版日期:1989-09-05 发布日期:2018-01-22

AN ESR STUDY OF NITROXIDE RADICALS PRODUCED IN THE RADICAL POLYMERIZATION OF VINYL MONOMER

Hanqing Wang¹, Liangbo Feng¹, Banghua Cai¹, Ziyi Zhang², Zhizhen Lu², Zhaolong Li²

1. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences;
2. Department of Chemistry, Lanzhou University

Received:1989-01-23 Online:1989-09-05 Published:2018-01-22

摘要/Abstract

摘要： 本文描述了在模拟聚合条件下几种羟胺类化合物在烯烃单体自由基聚合反应中形成氮氧自由基的ESR研究.结果表明在引发剂BPO和AIBN存在下,可以检测到由各母体羟胶生成对应的氮氧自由基,测量了各自由基的超精细偶合常数.提出了羟胺类化合物的可能阻聚机理.

关键词: 聚合阻聚剂, 有机羟胺, 自由基聚合

Abstract: The nitroxidc radicals produced from hydroxylamines in the radical polymerization of vinyl monomers have been studied by ESR technique. The results show that the nitroxidc radicals formed from their parent hydroxylamines can be detected in the presence of initiators BPO and AIBN. From these experimental results, the inhibition mechanism for the polymerization is proposed and discussed.

Key words: Nitroxide Radicals, Inhibitor, Radical Polymerization, ESR

汪汉卿, 冯良波, 蔡邦华, 张自义, 吕志珍, 李兆陇. 羟胺类化合物在烯烃单体自由基聚合反应中形成氮氧自由基的ESR研究[J]. 波谱学杂志, 1989, 6(3): 369-376.

Hanqing Wang, Liangbo Feng, Banghua Cai, Ziyi Zhang, Zhizhen Lu, Zhaolong Li. AN ESR STUDY OF NITROXIDE RADICALS PRODUCED IN THE RADICAL POLYMERIZATION OF VINYL MONOMER[J]. Chinese Journal of Magnetic Resonance, 1989, 6(3): 369-376.