First liquid single crystal elastomer containing lactic acid derivative as chiral co-monomer: synthesis and properties

0365470 - FZÚ 2012 RIV GB eng J - Journal Article
Bubnov, Alexej - Domenici, V. - Hamplová, Věra - Kašpar, Miroslav - Zalar, B.
First liquid single crystal elastomer containing lactic acid derivative as chiral co-monomer: synthesis and properties.
Polymer. Roč. 52, č. 20 (2011), s. 4490-4497. ISSN 0032-3861. E-ISSN 1873-2291
R&D Projects: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047; GA MŠMT(CZ) OC10006; GA ČR(CZ) GAP204/11/0723
Grant - others:German Czech bilateral program(XE) D4-CZ5/2010-2011; RFASI(RU) 02.740.11.5166
Institutional research plan: CEZ:AV0Z10100520
Keywords : liquid crystalline elastomer * ferroelectric liquid crystalline monomer * smectic A phase * X-ray diffraction * lactate chiral group * monodomain * polymer
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.438, year: 2011

For the first time new type of liquid single crystal elastomers forming the smectic A (SmA) phase has been prepared using chiral lactic acid derivative as a co-monomer unit. The synthesis route and the basic characterization of the utilized ferroelectric liquid crystalline co-monomer by means of differential scanning calorimetry and small/wide angle X-ray scattering are reported and discussed. The monomer possesses the paraelectric SmA* and the ferroelectric SmC* phases over a broad temperature range. The preparation of the new monodomain and polydomain smectic liquid crystalline elastomers together with characterization of their mesomorphic and structural properties are reported. The elastomers possess the orthogonal paraelectric SmA* phase over 50 K broad temperature range.
Permanent Link: http://hdl.handle.net/11104/0006596