Photochromic behavior of new bifunctional copolymer containing spiropyran and chalcone moiety in the side chain

被引：21
作者：
Kim, JH [1 ]
Ban, SY [1 ]
Kaihua, S [1 ]
Choi, DH [1 ]
机构：
[1] Kyung Hee Univ, Inst Nat Sci, Mat Res Ctr Informat Display, Coll Environm & Appl Chem, Suwon 449701, South Korea
来源：
DYES AND PIGMENTS | 2003年 / 58卷 / 02期
关键词：
photochromism; chalcone; spiropyran; photocrosslink; UV irradiation;
D O I：
10.1016/S0143-7208(03)00052-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
We synthesized two copolymers bearing photochromic spiropyran dye in the side chain for studying the dynamic properties of their photochromism. The dynamic processes of colorization and decolorization under an excitation light were investigated using the two copolymers. One of the copolymers contains methylmethacrylate (MMA) and methacrylate-spiropyran (MA-spiropyran). The other one contains methacrylate-spiropyran (MA-spiropyran) and methacrylate-chalcone (MA-chalcone) as a comonomer. Investigation of the photosensitivity of the newly synthesized copolymers was carried out by using UV-vis absorption spectroscopy. We observed the photodimerization and photochromic behavior under UV irradiation simultaneously. The effect of photocrosslink on the stability of photochromism was considered from this study. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：105 / 112
页数：8
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