THE EFFECT OF FLEXIBLE CHAIN FRAGMENTS ON ELECTROOPTICAL CHARACTERISTICS OF MESOGENIC CHAIN MOLECULES IN SOLUTION

被引：0
|
作者：
TSVETKOV, NV
ZUEV, VV
DIDENKO, SA
TSVETKOV, VN
机构：
来源：
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1995年 / 37卷 / 08期
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D O I：
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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：
Electrooptical properties of 4,4'-bis(cyanobiphenyl)oxyalkanes in dioxane and benzene were studied using nonequilibrium electrical birefringence. The dependence of molar Kerr constant on the length of oxyalkane chain was found to be nonmonotonic. This pattern was explained by the odd-even effect on intramolecular orientational polar and anisotropic order. Effects of equilibrium and kinetic flexibility of alkylene chain on the magnitude and sign of the observed birefringence and on the extent of correlation in orientations of mesogenic fragments of the molecular chain in electrical field were discussed.
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页码：1265 / 1271
页数：7
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