New chlorine substituted liquid crystals possessing frustrated TGBA and SmQ phases

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F08%3A00312407" target="_blank" >RIV/68378271:_____/08:00312407 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

New chlorine substituted liquid crystals possessing frustrated TGBA and SmQ phases

Original language description

New series of chlorine substituted rod-like liquid crystalline compounds containing one two or three lactate units in the chiral chain have been synthesized. Sequences of phases and phase transition temperatures have been determined by differential scanning calorimetry, polarizing optical microscopy and X-ray diffraction studies. Depending on the molecule structure, the materials possess a rich variety of mesophases, namely the paraelectric SmA, ferroelectric SmC* and antiferroelectric SmCA* phases. Moreover, some compounds with one and two lactate groups shows the frustrated TGBA and SmQ phases, respectively. Existence of the SmQ phase ordered in two directions has been demonstrated by X-ray diffraction on non-oriented sample. Effect of the non-chiralchain length and number of the chiral lactate groups on the mesomorphic properties, spontaneous polarization, spontaneous tilt angle and complex permittivity have been studied and discussed. Česká

Czech name

Nové kapalné krystaly substituované chlorem vykazující frustrované TGBA a SmQ fáze

Czech description

Byla připravena série nových kapalně-krystalických látek, které obsahují dvě až tři laktátové skupiny v chirální části molekuly. Byly popsány fáze, které se v těchto materiálech vyskytují. Pomocí kalorimetrických, dielektrických a elektrooptických měřeníbyly studovány a popsány fyzikální vlastnosti.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Liquid Crystals

ISSN

0267-8292

e-ISSN

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Volume of the periodical

35

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

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UT code for WoS article

000256963800015

EID of the result in the Scopus database

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