КФУ. Карточка публикации. Effect of secondary relaxation transitions on photo-induced anisotropy in glassy azobenzene-functionalized polymers

КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ

RUS

- EN
- 中文
- ES

EFFECT OF SECONDARY RELAXATION TRANSITIONS ON PHOTO-INDUCED ANISOTROPY IN GLASSY AZOBENZENE-FUNCTIONALIZED POLYMERS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2017

Язык

английский

Авторы, сотрудники КФУ

Сайкин Семен Константинович, автор

Шухина Ксения Леонидовна, автор

Библиографическое описание на языке оригинала

Kharinsev S.S. Effect of secondary relaxation transitions on photo-induced anisotropy in glassy azobenzene-functionalized polymers / S.S.Kharinsev, K.L.Shukhina, A.I.Fishman, S.K.Saikin //J. Mater. Chem. C, 2017 (DOI: 10.1039/C7TC01652B)

Аннотация

We propose a physical mechanism for a photo-induced orientation alignment of azo-dyes incorporated in polymers at temperatures far below the glass transition temperature. Using polarized FT-IR spectroscopy, we show that optical dichroism undergoes an observable change at the β-relaxation transition of azo-polymer when the mobility of short backbone fragments is increased. We explain this effect using temperature-dependent local strains that occur within the polymer backbones in a glassy state. These strains underlie the enhanced thermal relaxation that drives the orientation kinetics.

Ключевые слова

photo-induced orientation, glass transition, relaxation transition, thermal relaxation

Название журнала

Journal of Materials Chemistry C

URL

http://pubs.rsc.org/en/content/articlelanding/2014/tc/c7tc01652b#!divAbstract

Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку

https://repository.kpfu.ru/?p_id=159200

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Сайкин Семен Константинович	ru_RU
dc.contributor.author	Шухина Ксения Леонидовна	ru_RU
dc.date.accessioned	2017-01-01T00:00:00Z	ru_RU
dc.date.available	2017-01-01T00:00:00Z	ru_RU
dc.date.issued	2017	ru_RU
dc.identifier.citation	Kharinsev S.S. Effect of secondary relaxation transitions on photo-induced anisotropy in glassy azobenzene-functionalized polymers / S.S.Kharinsev, K.L.Shukhina, A.I.Fishman, S.K.Saikin //J. Mater. Chem. C, 2017 (DOI: 10.1039/C7TC01652B)	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=159200	ru_RU
dc.description.abstract	Journal of Materials Chemistry C	ru_RU
dc.description.abstract	We propose a physical mechanism for a photo-induced orientation alignment of azo-dyes incorporated in polymers at temperatures far below the glass transition temperature. Using polarized FT-IR spectroscopy, we show that optical dichroism undergoes an observable change at the β-relaxation transition of azo-polymer when the mobility of short backbone fragments is increased. We explain this effect using temperature-dependent local strains that occur within the polymer backbones in a glassy state. These strains underlie the enhanced thermal relaxation that drives the orientation kinetics.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	photo-induced orientation	ru_RU
dc.subject	glass transition	ru_RU
dc.subject	relaxation transition	ru_RU
dc.subject	thermal relaxation	ru_RU
dc.title	Effect of secondary relaxation transitions on photo-induced anisotropy in glassy azobenzene-functionalized polymers	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU