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Structure dependence of photochromism of azobenzene‐functionalized polythiophene derivatives
Author(s) -
Zhao XiongYan,
Wang MingZhu,
Liu HongJie
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24833
Subject(s) - polythiophene , azobenzene , photoluminescence , materials science , side chain , photochromism , polymer chemistry , photochemistry , isomerization , polymer , fourier transform infrared spectroscopy , conjugated system , azo compound , photoisomerization , copolymer , chemistry , conductive polymer , organic chemistry , chemical engineering , catalysis , optoelectronics , engineering , composite material
Two novel azobenzene‐functionalized polythiophene derivatives, poly[4‐((4‐(phenyl)azo)phenoxy)butyl‐3‐thienylacetate] (PATh‐4) and the copolymer of 3‐hexylthiophene and 4‐((4‐(phenyl)azo)phenoxy)butyl‐3‐thienylacetate (COP‐64) were synthesized. The structure and photoelectronic behavior of both polythiophene derivatives were characterized by NMR, FTIR, UV–vis, XRD, GPC, modulated DSC, and photoluminescence spectroscopy. These new polymers combine photoluminescence property and photochemical behavior of both polythiophene‐conjugated backbones and the photoisomerizable moieties in the side chains. The photoluminescence property of polymers so obtained can be modified reversibly through the photochemical isomerization reaction of the photoactive groups in side chains. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci 2008

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