PHASE-TRANSFER-CATALYZED CHLORINATION OF POLY(4-METHYLSTYRENE) BY HYPOCHLORITE

被引：14
|
作者：
JONES, RG
MATSUBAYASHI, Y
机构：
[1] University Chemical Laboratory, University of Kent at Canterbury, Canterbury
来源：
POLYMER | 1990年 / 31卷 / 08期
关键词：
chlorination; phase-transfer-catalysis; poly(4-methylstyrene); polychloromethylstyrene;
D O I：
10.1016/0032-3861(90)90160-Z
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 effects of variation of the conditions of phase-transfer-catalysed chlorination of poly(4-methylstyrene) using sodium hypochlorite in chloroform/dichloromethane mixtures are investigated. When the reaction is carried out at an aqueous phase pH of 8.5 and using a chloroform-rich organic phase, chlorination is predominantly at the 4-methyl substituent and di-/trichlorination and concomitant modification of the molecular-weight distribution of the polymer are minimal. Kinetic mechanisms compatible with the experimental observations are proposed. © 1990.
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收藏
页码：1519 / 1525
页数：7
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