New laterally aromatic branched liquid crystal materials with large nematic ranges
作者:
P. Berdagué,
J.P. Bayle,
Mei-Sing Ho,
B.M. Fung,
期刊:
Liquid Crystals
(Taylor Available online 1993)
卷期:
Volume 14,
issue 3
页码: 667-674
ISSN:0267-8292
年代: 1993
DOI:10.1080/02678299308027746
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Three new homologous series of mesogens containing three rings in the main structure and a lateral aromatic branch have been synthesized. When the lateral aromatic branch is attached to the middle ring, monotropic phases are observed, and there is a strong tendency to form the smectic C phase. When the lateral aromatic branch is attached to an outer ring, the compounds possess purely enantiotropic nematic phases. The terminal alkoxy chain in the outer ring which has a lateral aromatic substituent can be replaced by a rigid group without disturbing the large nematic range. Selective introduction of a particular substitutent may be useful for the construction of devices possessing desirable characteristics such as non-linear optical properties.
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