Počet záznamů: 1
Effect of molecular structure on dielectric and electro-optic properties of chiral liquid crystals based on lactic acid derivatives
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SYSNO ASEP 0507196 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effect of molecular structure on dielectric and electro-optic properties of chiral liquid crystals based on lactic acid derivatives Tvůrce(i) Barman, S.R. (IN)
Das, B. (IN)
Das, M.K. (IN)
Hamplová, Věra (FZU-D) RID, ORCID, SAI
Bubnov, Alexej (FZU-D) RID, ORCID, SAICelkový počet autorů 5 Zdroj.dok. Journal of Molecular Liquids. - : Elsevier - ISSN 0167-7322
Roč. 283, Jun (2019), s. 472-481Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova ferroelectric liquid crystals ; lactic acid derivative ; static permittivity ; spontaneous polarization ; response time ; torsional bulk viscosity ; anchoring energy coefficient Vědní obor RIV JJ - Ostatní materiály Obor OECD Materials engineering CEP GA18-14497S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora FZU-D - RVO:68378271 UT WOS 000468709300052 EID SCOPUS 85063396416 DOI 10.1016/j.molliq.2019.03.071 Anotace Self-assembling behaviour of several lactic acid derivatives with several ester linkage groups in the molecular core has been studied. Depending on the molecular structure compounds exhibit the chiral nematic N* phase, the paraelectric orthogonal smectic A* phase and the ferroelectric tilted smectic C* phase being thermally stable over relatively broad temperature range. The temperature behaviour of the spontaneous polarization clearly confirms the second order nature of the SmA*-SmC* phase transition and the first order nature of the N*-SmC* phase transition. The effect of temperature and molecular configuration on the polarization (WP) and on the dispersion (WD) anchoring energy coefficients have been established. The obtained results are discussed in order to contribute the structure – property relationship for the specific class of soft materials which can be used for design of smart multifunctional LC mixtures aimed for optoelectronic and photonic applications. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2020 Elektronická adresa https://doi.org/10.1016/j.molliq.2019.03.071
Počet záznamů: 1