新型三芳基乙烯光致变色材料的设计合成及其在光擦写薄膜中的应用  

Design,Synthesis and Applications in Light Writable and Erasable Polymer Films of New Triarylethylene Photochromic Materials

作　　者：张夏宇 魏珊珊[1] 黄成 王海兰 董孟阳 肖雨欣 黄荣娟 于涛 ZHANG Xiayu;WEI Shanshan;HUANG Cheng;WANG Hailan;DONG Mengyang;XIAO Yuxin;HUANG Rongjuan;YU Tao(School of Packaging and Materials Engineering,Hunan University of Technology,Zhuzhou 412007,Hunan,China;Institute of Flexible Electronics,Northwestern Polytechnical University,Xi'an 710129,China)

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007 [2]西北工业大学柔性电子研究院,西安710129

出　　处：《材料导报》2022年第6期173-177,共5页Materials Reports

基　　金：国家自然科学基金(51703253);湖南省教育厅重点项目(18A259)。

摘　　要：快速响应光致变色分子是在光照射下发生可逆的异构化反应来实现颜色改变的一类分子。此类材料在光开关、防伪和超分辨率荧光显微术等领域具有重要的潜在应用。针对传统三芳基乙烯类光致变色材料在掺杂薄膜中变色性能不足的问题,本工作把在高分子中相容性好的乙酯基引入三芳基光致变色单元,成功地开发了一种新型快速响应光致变色材料——乙酯三芳基乙烯(EF-TrPEF_(2))。这种化学结构简单的新型光致变色材料在溶液态、固态和聚合物膜中表现出快速的光致变色行为。此外,由于乙酯基团的存在,此类光致变色化合物在高分子薄膜中具有极好的光致变色性能。扫描电子显微镜(SEM)分析表明,EF-TrPEF_(2)与聚甲基丙烯酸甲酯(PMMA)具有良好的相容性,可以均匀地分散在PMMA薄膜中。因此,这些具有简单分子结构的三芳基乙烯衍生物在光致变色薄膜的制备中具有极大的应用前景。Rapid response photochromic molecules with light-induced isomerization properties under light are promising materials in the areas of photo-switches,anti-faking and super-resolution fluorescence microscopy.For the triarylethylene photochromic materials,poor photochromic properties were detected after doping in polymer films.To solve this problem,a novel fast-responsive photochromic material ethoxycarbonyl modified triarylethene(EF-TrPEF_(2))was successfully designed and developed.This new photochromic material with simple chemical structure exhibits fast photochromic behavior in solution,solid state and polymer film.In addition,due to the existence of ethyl ester groups,these photochromic compounds have excellent photochromic properties in polymer films.According to the scanning electron microscope(SEM)analysis,EF-TrPEF_(2)could be uniformly dispersed in PMMA film due to the good polymer compatibility of the ethoxycarbonyl groups.Therefore,these triarylethene derivatives with simple molecular structure have great application potential in the field of fabrication of photochromic polymer films.

关 键 词：快速响应 光致变色 均匀分散 高分子薄膜 

分 类 号：O64[理学—物理化学]