Počet záznamů: 1
Frustrated smectic liquid crystalline phases in lactic acid derivatives
- 1. 0468985 - FZU-D 2017 RIV GB eng J - Článek v odborném periodiku
Glogarová, Milada - Novotná, Vladimíra
Frustrated smectic liquid crystalline phases in lactic acid derivatives.
Phase Transitions. Roč. 89, č. 7-8 (2016), s. 829-839. ISSN 0141-1594
Grant CEP: GA ČR GA15-02843S
Institucionální podpora: RVO:68378271
Klíčová slova: field * liquid crystals * TGB phases
Kód oboru RIV: JJ - Ostatní materiály
Impakt faktor: 1.060, rok: 2016
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.
Trvalý link: http://hdl.handle.net/11104/0266900