A thermally adjustable multicolor photochromic hydrogel

被引:265
作者
Matsubara, Kazuki
Watanabe, Masayoshi
Takeoka, Yukikazu
机构
[1] Yokohama Natl Univ, Dept Chem & Biotechnol, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan
[2] Nagoya Univ, Dept Mol Design & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
gels; phase transitions; photochromism; polymers; reflection spectroscopy;
D O I
10.1002/anie.200603554
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A rainbow of possibilities: A porous polymer gel undergoes light-triggered rapid two-state switching between two arbitrary structural colors at a controlled temperature (see picture; "on": upon UV irradiation, "off": in the dark). This switching is attributed to a change between two volume states. As the temperature also contributes to the degree of swelling of the gel, the color of the gel can be tuned thermally over a wide range of wavelengths. (Figure Presented). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1688 / 1692
页数:5
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