CIS-TRANS-ISOMERIZATION OF POLYESTERS BASED ON 1,4-CYCLOHEXANEDICARBOXYLIC ACID IN THE LIQUID-CRYSTALLINE AND ISOTROPIC STATES

被引：0
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作者：
TENKOVTSEV, AV
RUTMAN, AB
BILIBIN, AY
机构：
来源：
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS | 1992年 / 193卷 / 03期
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中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyesters based on 4,4'-(cis-1,4-cyclohexanedicarbonyldioxy)dibenzoic acid and resorcinol or chlorohydroquinone were synthesized. The rate constants of the cis/trans isomerization reaction in the liquid-crystalline and isotropic states were measured. A liquid-crystalline environment is shown to enhance the rate of isomerization, but the chain rigidity determines the cis/trans equilibrium ratio of 1,4-cyclohexanedicarboxylic acid moieties.
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页码：687 / 692
页数：6
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