STUDIES OF THE MECHANISM OF FORMATION OF POLY(1,4-PHENYLENE SULFIDE) FROM COPPER(I) 4-BROMOBENZENETHIOLATE

被引:6
|
作者
ARCHER, AC [1 ]
LOVELL, PA [1 ]
机构
[1] UMIST,MANCHESTER MAT SCI CTR,POLYMER SCI & TECHNOL GRP,GROSVENOR ST,MANCHESTER M1 7HS,ENGLAND
关键词
D O I
10.1002/masy.19920540122
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 mechanism of formation of poly(1,4-phenylene sulfide) (PPS) by solution polymerisation of copper(I) 4-bromobenzenethiolate (CBT) at 200-degrees-C in quinoline under nitrogen at atmospheric pressure has been investigated. The polymerisation has been monitored as a function of reaction time by electron spin resonance (ESR) spectroscopy and by evaluating the yield and molar mass of the PPS formed. The ESR spectra provided direct evidence for the operation of a mechanism involving single electron transfer processes. The results are discussed in terms of possible mechanisms for polymerisation of CBT, leading to the conclusion that a S(RN)1-type mechanism predominates and that a free-radical mechanism also may be involved.
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页码:257 / 274
页数:18
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