BINARY-SYSTEMS OF SWALLOW-TAILED AND LATERALLY BRANCHED LIQUID-CRYSTALS AND THEIR DIELECTRIC BEHAVIOR

被引：4

作者：

HEINEMANN, S ^{[1
]}

KRESSE, H ^{[1
]}

WEISSFLOG, W ^{[1
]}

机构：

[1] MAX PLANCK GRP FLUSSIGKRISTALLINE SYST,O-4020 HALLE,GERMANY

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 1993年 / 28卷 / 01期

关键词：

D O I：

10.1002/crat.2170280123

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Swallow-tailed liquid crystals were mixted with four laterally branched substances in order to investigate the influence of molecular geometry on the correlations of molecules in the short range order. Besides the isobaric phase diagrams the results of dielectric measurements on oriented probes in the frequency range from 10 Hz to 100 kHz are discussed. Microscopic as well as dielectric investigations show that laterally branched molecules destroy the antiparallel arrangement of swallow-tailed substances and in this way destabilize the smetic A phase. It is possible to put in order laterally branched substances according to its ''destroying'' influence.

引用

页码：131 / 136

页数：6

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