制备分子光开关聚合物材料的光致变色染料

Photochromism Dyes Used for Polymer Materials of Molecular Optical Switch

在不同波长的光照射下 ,通过顺反异构、光环化、酮 -烯醇互变异构和光诱导电子转移等过程 ,使某些含生色团聚合物两种不同分子结构发生可逆的转变并伴随着颜色的变化 ,这类物质主要包括偶氮苯、二芳基烯、螺吡喃、俘精酸酐及卟啉类有机金属配位物等。基于这种光致变色性能 ,这类物质可用作存贮密度高、响应速度快及擦 -写次数高的信息存储材料。

The different molecular forms of chromophore containing polymers can be interconverted reversibly by means of cis trans isomerization, photocyclization, keto enol tautomerism and photoinduced electron transfer accompanied with color changes upon irradiation of light with different wavelengths. These chromophore containing polymers consist of azobenzenes, diarylalkenes, spiropyrans, fulgides and porphyrin like organo metallic complexes. They can be applied to molecular optical switches of high storage density, high switching rate, and high write erase cycle times based on their photochromism.