Deuteron NMR investigation on orientational order parameter in polymer dispersed liquid crystal elastomers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00537683" target="_blank" >RIV/68378271:_____/20:00537683 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1039/d0cp04143b" target="_blank" >https://doi.org/10.1039/d0cp04143b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0cp04143b" target="_blank" >10.1039/d0cp04143b</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Deuteron NMR investigation on orientational order parameter in polymer dispersed liquid crystal elastomers

Popis výsledku v původním jazyce

Polymer-dispersed liquid crystal (LC) elastomers have been recently introduced as a thermomechanically active composite material, consisting of magnetically oriented LC elastomer particles incorporated in a cured polymer matrix. Their thermomechanical properties are largely governed by the degree of imprinted particle alignment, which can be assessed by means of deuterium perturbed 2H-NMR. Spectra of samples with various degrees of imprinted particle alignment were recorded and the results simulated using the discrete reorientational exchange model developed for determining the dispersion of LC elastomer’s domain orientational distribution. We show that the model can be applied to measure the orientational distribution of embedded LC microparticles and successfully determine the orientational order parameter in the composite system. Thermomechanical measurements correlate well with the obtained results, thus additionally confirming the validity of the applied method.

Název v anglickém jazyce

Deuteron NMR investigation on orientational order parameter in polymer dispersed liquid crystal elastomers

Popis výsledku anglicky

Polymer-dispersed liquid crystal (LC) elastomers have been recently introduced as a thermomechanically active composite material, consisting of magnetically oriented LC elastomer particles incorporated in a cured polymer matrix. Their thermomechanical properties are largely governed by the degree of imprinted particle alignment, which can be assessed by means of deuterium perturbed 2H-NMR. Spectra of samples with various degrees of imprinted particle alignment were recorded and the results simulated using the discrete reorientational exchange model developed for determining the dispersion of LC elastomer’s domain orientational distribution. We show that the model can be applied to measure the orientational distribution of embedded LC microparticles and successfully determine the orientational order parameter in the composite system. Thermomechanical measurements correlate well with the obtained results, thus additionally confirming the validity of the applied method.

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

2020

Kód důvěrnosti údajů

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

Název periodika

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

—

Svazek periodika

22

Číslo periodika v rámci svazku

40

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

23064-23072

Kód UT WoS článku

000581596800022

EID výsledku v databázi Scopus

2-s2.0-85094220149