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Frustrated smectic liquid crystalline phases in lactic acid derivatives

SYSNO ASEP	0468985
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Frustrated smectic liquid crystalline phases in lactic acid derivatives
Author(s)	Glogarová, Milada (FZU-D)_{RID, ORCID} Novotná, Vladimíra (FZU-D)_{RID, ORCID, SAI}
Number of authors	2
Source Title	Phase Transitions. - : Taylor & Francis - ISSN 0141-1594 Roč. 89, č. 7-8 (2016), s. 829-839
Number of pages	11 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	field ; liquid crystals ; TGB phases
Subject RIV	JJ - Other Materials
R&D Projects	GA15-02843S GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271
UT WOS	000382772300022
EID SCOPUS	84965027276
DOI	10.1080/01411594.2016.1180519
Annotation	We have prepared and studied a series of compounds with different types of molecular core and lactate unit in the chiral terminal chain. We draw a survey and comparison of their mesomorphic properties with respect to the occurrence of twist grain boundary (TGB) phases. The materials exhibit extremely wide TGBA phase more than 60K broad, unique TGBA-TGBC-SmC-SmCA phase sequence and unique re-entrant TGBA phase below the SmA phase. TGB phases have been induced in binary mixtures of molecules with different molecular shape and chirality (chiral lactic acid derivative and non-chiral hockey-stick mesogen). Unique effect is observed for compounds with TGBA phase, where the applied electric field transforms the planar texture into the homeotropic one, homogeneously dark in crossed polarizers.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2017

Number of the records: 1