Mesomorphic properties of non-symmetric bent-core liquid crystals with a lateral substituent in the apex position

Skopalová, H.; Kozmik, V.; Šmahel, M.; Svoboda, J.; Pacherová, Oliva; Kohout, M.; Novotná, Vladimíra

doi:https://dx.doi.org/10.1080/02678292.2020.1836567

Number of the records: 1

Mesomorphic properties of non-symmetric bent-core liquid crystals with a lateral substituent in the apex position

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SYSNO ASEP	0542865
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Mesomorphic properties of non-symmetric bent-core liquid crystals with a lateral substituent in the apex position
Author(s)	Skopalová, H. (CZ) Kozmik, V. (CZ) Šmahel, M. (CZ) Svoboda, J. (CZ) Pacherová, Oliva (FZU-D)_{RID, ORCID} Kohout, M. (CZ) Novotná, Vladimíra (FZU-D)_{RID, ORCID, SAI}
Number of authors	7
Source Title	Liquid Crystals. - : Taylor & Francis - ISSN 0267-8292 Roč. 48, č. 7 (2021), s. 1010-1024
Number of pages	15 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	liquid crystals ; bent-core liquid crystals ; apex substitution ; terephthalate unit ; polar smectic phase ; SmC phase
Subject RIV	JJ - Other Materials
OECD category	Materials engineering
R&D Projects	GA18-14497S GA ČR - Czech Science Foundation (CSF)
	EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Limited access
Institutional support	FZU-D - RVO:68378271
UT WOS	000583825900001
EID SCOPUS	85090208629
DOI	10.1080/02678292.2020.1836567
Annotation	We present a new series of bent-core liquid crystals possessing a lateral substituent in the apex position of the central core and a terephthalate connecting unit in one elongating side arm. The synthesised materials have been studied by polarizing optical microscopy, differential scanning calorimetry, dielectric spectroscopy and X-ray diffraction. Electro-optical studies have also been performed in order to confirm the character of the identified polar smectic phase. We document that materials substituted with fluorine exhibit polar synclininic antiferroelectric phase, for homologues with longer terminal alkyl chains, this SmCP phase is accompanied with a high temperature SmC phase. Our results document that the introduction of the aforementioned structural features triggers significant modification of the mesomorphic behaviour observed for similar compounds.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2022
Electronic address	https://doi.org/10.1080/02678292.2020.1836567

Number of the records: 1