Properties of new polar liquid crystalline materials with the keto group and different number of lactate units

Alexej M. Bubnov; Milada Glogarova; Yuliya Semenova; Yuri Panarin; Miroslav Kaspar; Vera Hamplova

doi:10.1117/12.581063

1 September 2004 Properties of new polar liquid crystalline materials with the keto group and different number of lactate units

Alexej M. Bubnov, Milada Glogarova, Yuliya Semenova, Yuri Panarin, Miroslav Kaspar, Vera Hamplova

Author Affiliations +

Proceedings Volume 5565, XV Conference on Liquid Crystals; (2004) https://doi.org/10.1117/12.581063
Event: XV Conference on Liquid Crystals, 2003, Zakopane, Poland

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.

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Alexej M. Bubnov, Milada Glogarova, Yuliya Semenova, Yuri Panarin, Miroslav Kaspar, and Vera Hamplova "Properties of new polar liquid crystalline materials with the keto group and different number of lactate units", Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); https://doi.org/10.1117/12.581063

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