Nové fotosenzitivní polymerní kompozity na principu porezního polyethylenu plněného kapalně krystalickou směsí obsahující azobenzenové seskupení: vratná fotomodulace dichroismu a dvojlomu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F08%3A00312735" target="_blank" >RIV/68378271:_____/08:00312735 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

New photosensitive polymer composites based on oriented porous polyethylene filled with azobenzene-containing LC mixture: reversible photomodulation of dichroism and birefringence

Popis výsledku v původním jazyce

A new type of polymer-liquid crystal composites with photovariable dichroism and birefringence were elaborated. The porous stretched polyethylene (PE) films with pores size in the range of 50-500 nm were used as polymer matrices. The photochromic cholesteric mixture based on the commercial nematic mixture doped with azobenzene and merocianine dopants was prepared. Highly birefringent deeply colored flexible films possessing strong dichroism were obtained by introduction of photochromic LC mixture into stretched PE films by capillary forces. UV irradiation leads to E-Z isomerization of azobenzene-containing molecules inside the composite films and results in significant decrease of dichroism almost down to zero. The composite films show high fatigue resistance during the alternating cycles of UV-vis irradiation. Such novel type of composites can be considered as the promising materials for the photonics and optical information processing.

Název v anglickém jazyce

New photosensitive polymer composites based on oriented porous polyethylene filled with azobenzene-containing LC mixture: reversible photomodulation of dichroism and birefringence

Popis výsledku anglicky

A new type of polymer-liquid crystal composites with photovariable dichroism and birefringence were elaborated. The porous stretched polyethylene (PE) films with pores size in the range of 50-500 nm were used as polymer matrices. The photochromic cholesteric mixture based on the commercial nematic mixture doped with azobenzene and merocianine dopants was prepared. Highly birefringent deeply colored flexible films possessing strong dichroism were obtained by introduction of photochromic LC mixture into stretched PE films by capillary forces. UV irradiation leads to E-Z isomerization of azobenzene-containing molecules inside the composite films and results in significant decrease of dichroism almost down to zero. The composite films show high fatigue resistance during the alternating cycles of UV-vis irradiation. Such novel type of composites can be considered as the promising materials for the photonics and optical information processing.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

<a href="/cs/project/OC%20175" target="_blank" >OC 175: Multifunkční kapalněkrystalické materiály</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

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

—

Svazek periodika

35

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000256963800004

EID výsledku v databázi Scopus

—