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Proceedings Paper

Properties of new polar liquid crystalline materials with the keto group and different number of lactate units
Author(s): Alexej M. Bubnov; Milada Glogarova; Yuliya Semenova; Yuri Panarin; Miroslav Kaspar; Vera Hamplova
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Paper Abstract

New series of chiral liquid crystalline materials with the same rigid core with keto group and a various number of (S)-lactate groups in the chiral part of the moelcule have been studid by DSC, X-ray, electro-optics and dielectric spectroscopy. All compounds contain branched terminal alkyl chain derived from (S)-2-methylbutanol. The influence of the lactate number on mesogenic behavior of those compounds has been studied. All compounds show the paraelectric SmA phase and the ferroelectric SmC* phase in a rather wide temperature range. The antiferroelectric SmC*A phase was detected for the compound possessing two lactate groups. A polar field-induced smectic phase have been observed by electro-optic studies.

Paper Details

Date Published: 1 September 2004
PDF: 6 pages
Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); doi: 10.1117/12.581063
Show Author Affiliations
Alexej M. Bubnov, Institute of Physics (Czech Republic)
Milada Glogarova, Institute of Physics (Czech Republic)
Yuliya Semenova, Dublin Institute of Technology (Ireland)
Yuri Panarin, Dublin Institute of Technology (Ireland)
Miroslav Kaspar, Institute of Physics (Czech Republic)
Vera Hamplova, Institute of Physics (Czech Republic)

Published in SPIE Proceedings Vol. 5565:
XV Conference on Liquid Crystals
Jozef Zmija, Editor(s)

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