Rheological characterization of a liquid crystalline diol and its dependence with an applied electric field

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00377073" target="_blank" >RIV/68378271:_____/12:00377073 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/02678292.2011.628702" target="_blank" >http://dx.doi.org/10.1080/02678292.2011.628702</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/02678292.2011.628702" target="_blank" >10.1080/02678292.2011.628702</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rheological characterization of a liquid crystalline diol and its dependence with an applied electric field

Popis výsledku v původním jazyce

In the present work the rheological characterization (steady state and oscillatory data) of a non-chiral low molecular weight liquid crystalline diol (denoted as HBP 6/6) exhibiting the nematic and smetic phases over a broad temperature range is presented. A non-newtonian flow behaviour was found. This result, together with the progressive increase of the viscosity observed near the nematic ? isotropic transition, suggests that the material behaves like a polymer, due to hydrogen bonding. The effect ofan electric field applied normal to the flow direction, on the steady state in the nematic phase has been also established. An electrorheological effect shows up, as an enhancement of the apparent viscosity, due to the positive dielectric anisotropy of this material. It has been found that the increase of the apparent viscosity scales linearly with the applied field strength.

Název v anglickém jazyce

Rheological characterization of a liquid crystalline diol and its dependence with an applied electric field

Popis výsledku anglicky

In the present work the rheological characterization (steady state and oscillatory data) of a non-chiral low molecular weight liquid crystalline diol (denoted as HBP 6/6) exhibiting the nematic and smetic phases over a broad temperature range is presented. A non-newtonian flow behaviour was found. This result, together with the progressive increase of the viscosity observed near the nematic ? isotropic transition, suggests that the material behaves like a polymer, due to hydrogen bonding. The effect ofan electric field applied normal to the flow direction, on the steady state in the nematic phase has been also established. An electrorheological effect shows up, as an enhancement of the apparent viscosity, due to the positive dielectric anisotropy of this material. It has been found that the increase of the apparent viscosity scales linearly with the applied field strength.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Liquid Crystals

ISSN

0267-8292

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

191-197

Kód UT WoS článku

000300394100006

EID výsledku v databázi Scopus

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