STUDIES ON COPOLYCONDENSATION MECHANISMS FROM m-METHOXY-p-ACETOXYBENZOIC ACID,p-ACETOXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE)

被引：0
|
作者：
李新贵
关桂荷
孙桐
机构：
[1] 63 Chenglin Zhuang Road
[2] Department of Chemical-fiber Technology
[3] Department of Chemical-fiber Technology Institute of Membrane Separation Engineering
[4] P.R.China.
[5] Tianjin 300160
[6] Tranjin Institute of Textile Science and Technology
来源：
Journal of Donghua University(English Edition) | 1991年 / 01期
关键词：
copolymerization; mechanism; reactivity ratio; nuclear magnetic resonance; liguid crystal; terpolymer; diad sequence;
D O I：
10.19884/j.1672-5220.1991.01.001
中图分类号：
学科分类号：
摘要：
Copolycondensation mechanisms for the terpolyester system from m-methoxy-p-acetoxybenzoic acid,p-acetoxybenzoic acid and poly(ethylene terephthalate)are first investigatedby high resolution proton NMR spectroscopy at 400 MHz.A series of reactivity ratios of thecopolycondensation reactions are given.The results shown that the m-methoxy-p-acetoxybenzoicacid tends to homopolymerize,while the p-acetoxybenzoic acid,and the ethylene terephthalate unitespecially,tend to copolymerize with the m-methoxy-p-acetoxybenzoic acid.
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页码：1 / 6
页数：6
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