Effect of a bulky lateral substitution by chlorine atom and methoxy group on self-assembling properties of lactic acid derivatives

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00430064" target="_blank" >RIV/68378271:_____/14:00430064 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.matchemphys.2014.02.036" target="_blank" >http://dx.doi.org/10.1016/j.matchemphys.2014.02.036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchemphys.2014.02.036" target="_blank" >10.1016/j.matchemphys.2014.02.036</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of a bulky lateral substitution by chlorine atom and methoxy group on self-assembling properties of lactic acid derivatives

Popis výsledku v původním jazyce

Several chiral LCs derived from the lactic acid have been studied with the aim to establish the effect of bulky lateral substituents on mesomorphic and structural properties. A chlorine atom and methoxy group have been used as lateral substituents in para position on phenyl ring far from the chiral centre. All the studied materials possess the ferroelectric tilted smectic C* phase in a broad temperature range. In dependence on the molecular structure namely type of lateral substituent and length of thechiral chain, the cholesteric phase, paraelectric orthogonal smectic A phase and hexagonal smectic B (eventually crystal B) phases have been detected. Lateral chlorine substitution results in decrease of the clearing point and crystallization temperatureas well as in increase of the spontaneous polarization. Bulky methoxy substitution slightly supress the spontaneous polarisation but strongly increase the melting point that results in monotropic peculiarity of the SmC* phase.

Název v anglickém jazyce

Effect of a bulky lateral substitution by chlorine atom and methoxy group on self-assembling properties of lactic acid derivatives

Popis výsledku anglicky

Several chiral LCs derived from the lactic acid have been studied with the aim to establish the effect of bulky lateral substituents on mesomorphic and structural properties. A chlorine atom and methoxy group have been used as lateral substituents in para position on phenyl ring far from the chiral centre. All the studied materials possess the ferroelectric tilted smectic C* phase in a broad temperature range. In dependence on the molecular structure namely type of lateral substituent and length of thechiral chain, the cholesteric phase, paraelectric orthogonal smectic A phase and hexagonal smectic B (eventually crystal B) phases have been detected. Lateral chlorine substitution results in decrease of the clearing point and crystallization temperatureas well as in increase of the spontaneous polarization. Bulky methoxy substitution slightly supress the spontaneous polarisation but strongly increase the melting point that results in monotropic peculiarity of the SmC* phase.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-14133S" target="_blank" >GA13-14133S: Perspektivní funkční materiály s polárním uspořádáním v nano měřítku</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

—

Svazek periodika

146

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

18-25

Kód UT WoS článku

000336467900004

EID výsledku v databázi Scopus

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