INTERACTION OF TRIPHENYLMETHYL SALTS WITH VINYL ETHERS

被引：1
|
作者：
VELICHKOVA, RS
DOICHEVA, JB
PANAYOTOV, IM
机构：
[1] Bulgarian Acad of Sciences, Sofia, Bulg, Bulgarian Acad of Sciences, Sofia, Bulg
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1987年 / 25卷 / 06期
关键词：
CHROMATOGRAPHIC ANALYSIS - NUCLEAR MAGNETIC RESONANCE - POLYMERIZATION - Reaction Kinetics;
D O I：
10.1002/pola.1987.080250611
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 initiation of isobutyl, n-butyl, ethyl, and 2-chloroethyl vinyl ethers polymerization by trityl ion salts was investigated. The oligomers formed and the reaction mixtures were analyzed by GPC and **1H-NMR spectroscopy. It is concluded that the initiation proceeds via two competing reactions. The addition of the initiator to the monomer is determined as usual by the electrophilicity of the former and the nucleophilicity of the latter. In order to realize initiation by hydride transfer it is necessary for the monomer to possess a hydrogen atom with hydride mobility and that the cation obtained is sufficiently stable. The relative part of these initiation reactions is determined.
引用
收藏
页码：1569 / 1577
页数：9
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