Liquid crystal-polymer composites. Anomalous electro-optical curve
作者:
L. Bouteiller,
P. Le Barny,
Ph. Martinot-Lagarde,
期刊:
Liquid Crystals
(Taylor Available online 1994)
卷期:
Volume 17,
issue 5
页码: 709-716
ISSN:0267-8292
年代: 1994
DOI:10.1080/02678299408037342
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Liquid crystal-polymer composites containing a low proportion of polymer are of interest because of their low driving voltage, but they can show anomalous electro-optical curves, such as a minimum in the electro-optical curve. We explain the existence of this minimum, by a partial orientation of liquid crystal domains, together with the presence of mobile polymer fragments. This partial orientation is visible using a polarizing microscope, and the presence of polymer that is not linked to the main network is proved by size exclusion chromatography of the liquid crystal extracted from the composite.
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