FLUOROALKYLATED DISCOTIC LIQUID-CRYSTALS

被引：91

作者：

DAHN, U

ERDELEN, C

RINGSDORF, H

FESTAG, R

WENDORFF, JH

HEINEY, PA

MALISZEWSKYJ, NC

机构：

[1] UNIV MARBURG,FACHBEREICH PHYS CHEM,D-35032 MARBURG,GERMANY

[2] UNIV MARBURG,WISSENSCH ZENTRUM MAT WISSENSCH,D-35032 MARBURG,GERMANY

[3] UNIV PENN,DEPT PHYS,PHILADELPHIA,PA 19104

来源：

LIQUID CRYSTALS | 1995年 / 19卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/02678299508031096

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The concept of mesophase stabilization by partial fluorination of side chains has been extended to discotic systems. The mesophase structure is essentially unchanged, whereas the temperature range of the mesophase is strongly affected by the fluorinated side chains. Triphenylene substituted with only one partially fluorinated side chain exhibits a decrease of the clearing temperature, whereas for symmetrically substituted systems a broad range mesophase has been observed. This behaviour can be attributed to a segregation of the incompatible parts of the molecule giving rise to a stabilized columnar structure for the symmetrical substitution pattern.

引用

页码：759 / 764

页数：6

共 23 条

[1] HIGHLY PHOTOCONDUCTIVE DISCOTIC LIQUID-CRYSTALS - STRUCTURE-PROPERTY RELATIONS IN THE HOMOLOGOUS SERIES OF HEXA-ALKOXYTRIPHENYLENES [J].