The irreversible thermo-bleaching function of a photochromic diarylethene having trimethylsilyl groups
作者:Seiya Kobatake、Hiroyuki Imagawa、Hidenori Nakatani、Seiichiro Nakashima
DOI:10.1039/b822372f
日期:——
A new function of a photochromic diarylethene, having trimethylsilyl groups at the reactive positions, has been developed. Upon alternating ultraviolet and visible light irradiation, the diarylethene showed photoreversible photochromism in a polymer film, as well as in solution. The colored state changed to colorless immediately upon heating at 100 °C. The colorless state, which is different from the open-ring isomer, was stable under both ultraviolet and visible light irradiation. Such photochromic materials could potentially be used in applications as secret display materials.
已开发出一种新功能的光致变色二芳基乙烯,其反应位置上具有三甲基甲硅烷基。在交替的紫外线和可见光照射下,二芳基乙烯在聚合物薄膜以及溶液中表现出光致可逆的光致变色性。加热至100℃后,有色状态立即变为无色。与开环异构体不同,无色状态在紫外光和可见光照射下都很稳定。这种光致变色材料有可能用作秘密显示材料。