Author： Bubnov Alexej Novotná Vladimíra Pociecha Damian Hamplová Věra Kašpar Miroslav
Publisher： Taylor & Francis Ltd
ISSN： 0141-1594
Source： Phase Transitions: A Multinational Journal, Vol.85, Iss.10, 2012-10, pp. : 849-860
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
In order to contribute to better understanding of the molecular structure–physical property relationship, properties of ferroelectric liquid crystalline materials derived from the lactic acid with the keto group in the molecular core have been studied. These compounds differing only by the length of the chiral and non-chiral alkyl chains exhibit the paraelectric SmA* and the ferroelectric SmC* phases over 150 K broad temperature range down to the room temperature. Temperature dependences of spontaneous polarization, tilt angle, layer spacing, helix pitch length and dielectric permittivity have been compared and discussed for all studied compounds. The effect of the alkyl chains length on mesomorphic properties has been established and discussed in comparison to that of similar materials.
Related content
By Stojanovic Maja Bubnov Alexej Obadovic Dusanka Z. Hamplova Ve˘ra Kaspar Miroslav Cvetinov Miroslav
Phase Transitions: A Multinational Journal, Vol. 84, Iss. 4, 2011-04 ,pp. :
Access to resources
Recommend
By Hylewska Ewa Kocot Antoni Merkel Katarzyna Wrzalik Roman
Phase Transitions: A Multinational Journal, Vol. 86, Iss. 10, 2013-10 ,pp. :
Ferroelectric and Antiferroelectric Liquid Crystals
Ferroelectrics, Vol. 301, Iss. 1, 2004-01 ,pp. :
Journal de Physique Lettres, Vol. 36, Iss. 3, 1975-03 ,pp. :