Properties of non-symmetric bent-core liquid crystals with variable flexible chain length

0347544 - FZÚ 2011 RIV GB eng J - Journal Article
Kohout, M. - Chambers, M. - Vajda, A. - Galli, G. - Domján, A. - Svoboda, J. - Bubnov, Alexej - Jákli, A. - Fodor-Csorba, K.
Properties of non-symmetric bent-core liquid crystals with variable flexible chain length.
Liquid Crystals. Roč. 37, č. 5 (2010), s. 537-545. ISSN 0267-8292. E-ISSN 1366-5855
R&D Projects: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047; GA MŠMT OC 175
Grant - others:RFASI(RU) No 02.740.11.5166
Institutional research plan: CEZ:AV0Z10100520
Keywords : bent-core liquid crystals * ferroelectric * antiferroelectric * switching * non-symmetrical
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.653, year: 2010
http://pdfserve.informaworld.com/388336_759481807_922609037.pdf

New non-symmetrical bent core mesogens with a variable flexible chain length have been synthesized. The compounds were derived from 3-hydroxybenzoic acid, which is the central unit of the molecules. The tails on both ends were connected by ester functionality, one tail contains a terminal double bond and the other one is saturated. The compounds represent novel non-symmetric molecules both in their core and tails without “bumps” in their molecular configurations. DSC, polarizing optical microscopy, electro-optical and polarization current measurements show a transition between a ferroelectric and an antiferroelectric smectic phase.
Permanent Link: http://hdl.handle.net/11104/0188301