Self-assembling properties of lactic acid derivative with several ester linkages in the molecular core

0449058 - FZÚ 2016 RIV GB eng J - Článek v odborném periodiku
Pramanik, A. - Das, M.K. - Das, B. - Hamplová, Věra - Kašpar, Miroslav - Bubnov, Alexej
Self-assembling properties of lactic acid derivative with several ester linkages in the molecular core.
Phase Transitions. Roč. 88, č. 7 (2015), s. 745-757. ISSN 0141-1594. E-ISSN 1029-0338
Grant CEP: GA ČR GA13-14133S; GA MŠMT(CZ) LD14007
Grant ostatní: AVČR(CZ) M100101204; AV ČR(CZ) M100101211
Institucionální podpora: RVO:68378271
Klíčová slova: lactic acid derivative * ferroelectric liquid crystal * self-assembling * spontaneous polarization * birefringence * phase transition
Kód oboru RIV: JJ - Ostatní materiály
Impakt faktor: 0.858, rok: 2015

An effect of several polar ester linkage groups incorporated in the molecule core of a chiral lactic acid derivative on self-assembling properties has been investigated by several experimental techniques, namely polarizing optical microscopy, small angle X-ray diffraction, differential scanning calorimetry, dielectric spectroscopy and optical studies. The compound possess the paraelectric SmA* and ferroelectric SmC* phases over a broad temperature range. Basic properties of the self-assembly material possessing the polar phases, i.e. mesomorphic behaviour, spontaneous polarization, birefringence, optical transmission and structural properties have been determined. The obtained results are discussed and compared with that of other liquid crystalline materials. The effect of polar ester linkages incorporated into the molecular core has also been discussed.
Trvalý link: http://hdl.handle.net/11104/0250645