FILLED SA PHASES IN BINARY-LIQUID CRYSTALLINE SYSTEMS OF TERMINAL-NONPOLAR COMPOUNDS .3. THE ROLE OF THE MOLECULE LENGTH OF THE ROD-LIKE COMPONENT

被引：2

作者：

PELZL, G ^{[1
]}

HUMKE, A ^{[1
]}

DIELE, S ^{[1
]}

ZIEBARTH, S ^{[1
]}

WEISSFLOG, W ^{[1
]}

DEMUS, D ^{[1
]}

机构：

[1] VEB LAB APOLDA,BETRIEBSTEIL SPEZIALCHEM LEIPZIG,FORSCH & ENTWICKLUNG ABT,O-7143 LEIPZIG,GERMANY

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 1990年 / 25卷 / 05期

关键词：

D O I：

10.1002/crat.2170250525

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The phase diagrams of 8 binary systems of liquid crystals are presented whereby one component is a “biswallow tailed” compound and the second component is a member of the homologous series of 4,4′‐bis‐n‐alkyloxy‐azoxybenzenes. In all phase diagrams studied induced smectic A phases occur. X‐ray investigations give evidence that in the binary systems of short‐chain homologues the layer spacing d of the smectic A phase is clearly greater than the average molecular length L̄, whereas in the systems of long‐chain homologoues d is found to be somewhat smaller than L̄. The results are interpreted on the basis of a simple packing model. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：587 / 595

页数：9

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