The role of lateral substituent size in azobenzene chromophores on photo- and chiro-optical properties of photoactive polymethacrylates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00570965" target="_blank" >RIV/68378271:_____/23:00570965 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jphotochem.2023.114689" target="_blank" >https://doi.org/10.1016/j.jphotochem.2023.114689</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jphotochem.2023.114689" target="_blank" >10.1016/j.jphotochem.2023.114689</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The role of lateral substituent size in azobenzene chromophores on photo- and chiro-optical properties of photoactive polymethacrylates

Popis výsledku v původním jazyce

Properties of functional macromolecular materials, especially those showing self-organizing behaviour and targeted for specific purposes, strongly rely on the molecular structure of mesogens used as side-chains. In order to get inside this relationship, new series of chiral liquid crystalline polymethacrylates with azobenzene groups having different lateral substituents, namely the methyl and ethyl groups were synthesized. The polymers consist of photochromic azobenzene fragment that differ in the size of lateral substituent. Investigations of photo-orientation process under polarized visible light action reveals that an increase in the substituent size considerably reduces values of maximum achievable photoinduced dichroism. The effect of the lateral substituent size in azobenzene photochrome on the chiro-optical properties and mesomorphic behaviour of studied polymers was established. The designed polymethacrylates can be considered as promising materials for photonic applications.

Název v anglickém jazyce

The role of lateral substituent size in azobenzene chromophores on photo- and chiro-optical properties of photoactive polymethacrylates

Popis výsledku anglicky

Properties of functional macromolecular materials, especially those showing self-organizing behaviour and targeted for specific purposes, strongly rely on the molecular structure of mesogens used as side-chains. In order to get inside this relationship, new series of chiral liquid crystalline polymethacrylates with azobenzene groups having different lateral substituents, namely the methyl and ethyl groups were synthesized. The polymers consist of photochromic azobenzene fragment that differ in the size of lateral substituent. Investigations of photo-orientation process under polarized visible light action reveals that an increase in the substituent size considerably reduces values of maximum achievable photoinduced dichroism. The effect of the lateral substituent size in azobenzene photochrome on the chiro-optical properties and mesomorphic behaviour of studied polymers was established. The designed polymethacrylates can be considered as promising materials for photonic applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/GC20-22615J" target="_blank" >GC20-22615J: Světlem řízené kapalně krystalické polymery s hydrazonovou nebo azobenzenovou skupinou určené pro fotoniku.</a><br>

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

Journal of Photochemistry and Photobiology A-Chemistry

ISSN

1010-6030

e-ISSN

1873-2666

Svazek periodika

440

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

114689

Kód UT WoS článku

001041926100001

EID výsledku v databázi Scopus

2-s2.0-85150231903