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https://open.uns.ac.rs/handle/123456789/14219
Title: | Effect of the chiral chain length on structural and phase properties of ferroelectric liquid crystals | Authors: | Stojanović M. Bubnov A. Obadović D. Hamplova V. Kašpar M. Cvetinov, Miroslav |
Issue Date: | 1-Apr-2011 | Journal: | Phase Transitions | Abstract: | Studies of structural and phase properties obtained on several ferroelectric liquid crystalline materials with 2-alkoxypropionate group used as a chiral centre and without any lateral substitution are presented. In dependence on the chiral chain length these compounds exhibit the cholesteric N* phase, the ferroelectric smectic C* and a low-temperature SmX phase. Values of the spontaneous polarization and spontaneous tilt angle have been determined within the whole range of the SmC* phase. A low-temperature SmX phase has been identified as the orthogonal hexatic SmB* phase. The molecular parameters, namely the layer spacing in the SmC* and SmB* phases and the average intermolecular distances (D) between neighbouring parallel molecules in all investigated phases have been determined using the results of the X-ray diffraction obtained on non-oriented samples. The effect of the chiral chain length on mesomorphic, structural and physical properties of the studied ferroelectric liquid crystalline materials is discussed. © 2011 Taylor & Francis. | URI: | https://open.uns.ac.rs/handle/123456789/14219 | ISSN: | 01411594 | DOI: | 10.1080/01411594.2010.545185 |
Appears in Collections: | PMF Publikacije/Publications |
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