Two New Bithiophenes Derivatives Multielectrochromic Copolymer Based on Triphenylamine Unit and Their Application for Electrochromic Devices

Bulletin of the Korean Chemical Society

Lingqian Kong¹  Xuezhong Liu²  Jinsheng Zhao³  Yan Zhang³  Chunlei Wang³ 

[1] Dongchang College Liaocheng University Liaocheng 252059 P. R. China;Liaocheng People's Hospital Liaocheng 252000 P. R. China;Shandong Key Laboratory of Chemical Energy Storage and Novel Cell Technology Liaocheng University Liaocheng 252059 P. R. China

关键词: Electrochemical polymerization;    Spectroelectrochemistry;    Electrochromic devices;    Triphenylamine;   

DOI  :  10.1002/bkcs.10844

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Two monomers including 4,4′,4″‐tris(3‐methoxythiophene‐2‐yl)triphenylamine (M1) and 4,4′,4″‐tris(3,4‐dimethoxythiophene‐2‐yl)triphenylamine (M2) with triphenylamine as their core were synthesized and the corresponding polymers were obtained by electrochemical polymerization. Their electrochemical properties were investigated using scanning electron microscopy, UV–Vis, and cyclic voltammetry. It was found that the two polymers had reversible redox behavior with the different color change under the applied potentials. Both the polymers displayed high switching efficiency and optical contrast. Moreover, the corresponding electrochromic devices (ECDs) employing the synthesized polymers and poly(3,4‐ethylenedioxythiophene) were constructed. The spectroelectrochemical experiments illustrated that the ECDs exhibited fast response time, reasonable optical contrast, favorable optical memories, and redox stability.

【 授权许可】

Unknown