New liquid crystalline elastomeric films containing a smectic crosslinker: chemical and physical properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00570452" target="_blank" >RIV/68378271:_____/23:00570452 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0341745" target="_blank" >https://hdl.handle.net/11104/0341745</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/cryst13010096" target="_blank" >10.3390/cryst13010096</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New liquid crystalline elastomeric films containing a smectic crosslinker: chemical and physical properties

Popis výsledku v původním jazyce

Side-chain liquid crystal elastomers (LCE) have been designed by using a new smectic crosslinker. Two types of monodomain films were prepared based on polysiloxane chains, with a different relative concentration of both crosslinker and mesogenic monomers. The mesomorphic behaviour of the two LCE systems shows a different mesomorphic behaviour: in one case, the LCE film has a nematic phase, on the other case, the LCE film has a direct transition from the isotropic to the smectic A phase. In both LCEs, the mesophases are stable in a wide temperature range and the LCE films possess high orientation at room temperature. Physical-chemical properties, such as local orientational ordering, structural organization and dynamics of LCE’s constituents were studied by means of static and dynamic 2H NMR, SAXS and WAXS. Relevant physical properties, such as stress-strain and thermo-mechanic trends, are reported and discussed in view of practical applications.

Název v anglickém jazyce

New liquid crystalline elastomeric films containing a smectic crosslinker: chemical and physical properties

Popis výsledku anglicky

Side-chain liquid crystal elastomers (LCE) have been designed by using a new smectic crosslinker. Two types of monodomain films were prepared based on polysiloxane chains, with a different relative concentration of both crosslinker and mesogenic monomers. The mesomorphic behaviour of the two LCE systems shows a different mesomorphic behaviour: in one case, the LCE film has a nematic phase, on the other case, the LCE film has a direct transition from the isotropic to the smectic A phase. In both LCEs, the mesophases are stable in a wide temperature range and the LCE films possess high orientation at room temperature. Physical-chemical properties, such as local orientational ordering, structural organization and dynamics of LCE’s constituents were studied by means of static and dynamic 2H NMR, SAXS and WAXS. Relevant physical properties, such as stress-strain and thermo-mechanic trends, are reported and discussed in view of practical applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Crystals

ISSN

2073-4352

e-ISSN

2073-4352

Svazek periodika

13

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

17

Strana od-do

96

Kód UT WoS článku

000917233100001

EID výsledku v databázi Scopus

2-s2.0-85146808802