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Synthesis and photochromic properties of naphthopyran polymer containing photocrosslinkable coumarin moiety
Author(s) -
Xie Bingjie,
Wang Guang,
Zhao Xiancai
Publication year - 2011
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.34427
Subject(s) - photochromism , moiety , polymer chemistry , copolymer , photochemistry , polymerization , materials science , atom transfer radical polymerization , polymer , irradiation , kinetics , radical polymerization , chemistry , organic chemistry , physics , quantum mechanics , nuclear physics
Naphthopyran homopolymer and copolymer containing coumarin in side chain were synthesized by atom transfer radical polymerization. Their photochromic properties were investigated using UV–vis absorption spectroscopy and their decoloration kinetics in films was quantified by biexponential fitting of their photochromic decoloration curves after UV irradiation. The results showed that the photochromism and photocrosslinking occurred simultaneously under UV irradiation, and the photocrosslinking of coumarin reduced the decoloration rate of naphthopyran. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011.