FILLED SMECTIC-A PHASES IN BINARY LIQUID-CRYSTALLINE SYSTEMS OF TERMINAL-NONPOLAR COMPOUNDS .5. SMECTIC-A PHASES WITH UNUSUALLY HIGH RATIO OF THE LAYER SPACING AND THE AVERAGE MOLECULAR LENGTH

被引：20

作者：

PELZL, G ^{[1
]}

DIELE, S ^{[1
]}

ZIEBARTH, K ^{[1
]}

WEISSFLOG, W ^{[1
]}

DEMUS, D ^{[1
]}

机构：

[1] VEB LAB APOLDA,BETRIEBSTEIL SPEZIAL CHEM LEIPZIG,LEIPZIG,GERMANY

来源：

LIQUID CRYSTALS | 1990年 / 8卷 / 06期

关键词：

D O I：

10.1080/02678299008047387

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The phase diagrams of four binary systems are presented in which one component is a bi-swallow tailed compound and the second is a nematogenic rod-like compound. In all of the phase diagrams studied an induced smectic A phase occurs. According to X-ray measurements the layer spacing of the smectic A phase is considerably higher than the average molecular length Depending on the binary system and the concentration ratios between 1·17 and 2·13 were found. We propose an interpretation of the results on the basis of a simple packing model. © 1990 Taylor & Francis Group, LLC.

引用

页码：765 / 773

页数：9