含三联吡啶基团的聚三苯胺类电致变色薄膜的制备及性能研究  

PREPARATION AND PERFORMANCE OF ELECTROCHROMIC THIN FILMS BASED ON POLYTRIPHENYLAMINE CONSISTING OF TRIPYRIDINE MOIETY

作　　者：束敏 刘建 SHU Min;LIU Jian(College of Chemical Engineering,Nanjing Forestry University,Nanjing,Jiangsu 210037,China)

机构地区：[1]南京林业大学化学工程学院,江苏南京210037

出　　处：《井冈山大学学报（自然科学版）》2023年第1期25-31,共7页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金面上项目(22271157)。

摘　　要：以4-甲酰基三苯胺和2-乙酰基吡啶为原料合成了配体TPAtpy,再与二价钴离子配位制备配合物Co(TPAtpy)2,最后在ITO玻璃表面采用电化学聚合制备了两种电致变色薄膜poly-TPAtpy和poly-Co(TPAtpy)2。由于Co(Ⅱ)金属离子与有机配体之间有较强的相互作用,金属配位聚合物具有更好的稳定性,poly-Co(TPAtpy)2比poly-TPAtpy表现出更好的电致变色性质,poly-Co(TPAtpy)2的光学对比度高达76.5%(750 nm),着色效率高达570.1 cm2/C,响应时间较短(着色时间:12.8 s;褪色时间1.8 s)。The ligand TPAtpy was synthesized from 4-formyltrianilide and 2-acetyl pyridine,which was subsequently coordinated with cobalt bivalent ion to obtain the complex Co(TPAtpy)2.Finally,two novel electrochromic materials poly-TPAtpy and poly-Co(TPAtpy)2 were deposited on ITO substrates by electrochemical polymerization.Due to the strong interaction between Co(Ⅱ)ion and terpyridine-based ligands,the corresponding coordination polymer showed better stability.Compared with poly-TPAtpy,poly-Co(TPAtpy)2 exhibited superior electrochromic performance,involving large optical contrast up to 76.5%at 750 nm and high coloration efficiency over 570 cm2/C,as well as fast switching speed(the coloration time was 12.8 s and the bleaching time was 1.8 s,respectively).

关 键 词：钴配位聚合合物 电致变色薄膜 三苯胺 三联吡啶 

分 类 号：O631.23[理学—高分子化学]