Electrosynthesis and Characterization of Aminomethyl Functionalized PEDOT with Electrochromic Property

作     者：Hui Sun Bao-yang Lu Du-fen Hu 段学民 徐景坤 Shi-jie Zhen Kai-xin Zhang Xiao-fei Zhu Li-qi Dong Dai-ze Mo 

作者机构：School of Pharmacy Jiangxi Science & Technology Normal University 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2015年第33卷第11期

页      面：1527-1537页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51263010,51303073,51272096 and 51403008) Natural Science Foundation of Jiangxi Province(Nos.20122BAB216011,20142BAB206028 and 2014BAB216029) the Science and Technology Landing Plan of Universities in Jiangxi province(No.KJLD14069) 

主　　题：Conducting polymers Poly(3 4-ethylenedioxythiophene) derivatives Aminomethyl group Electrochemical polymerization Electrochromics 

摘      要：We herein report the electrosynthesis of an aminomethyl functionalized poly（3,4-ethylenedioxythiophene）（PEDOT） derivative, poly（2＇-aminomethyl-3,4-ethylenedioxythiophene）（PEDOT-Me NH2）, in CH2Cl2-Bu4NPF6（0.1 mol·L^-1） system containing 2% boron trifluoride diethyl etherate（BFEE）. The electrochemical behavior, structure characterization, thermal properties and surface morphology of this novel polymer were systematically investigated by cyclic voltammetry（CV）, Fourier-transform infrared spectroscopy（FTIR）, thermogravimetry（TG） and scanning electron microscopy（SEM）, respectively. Electrochemistry results demonstrated that PEDOT-Me NH2 film displayed good redox properties and high electrochemical stability. Besides, PEDOT-Me NH2 films exhibited the electrochromic nature with obvious color changing from purple in the reduced form to blue upon oxidation. By further investigation, kinetic studies revealed that PEDOT-Me NH2 film had decent contrast ratio（41.8%）, favorable coloration efficiency（152.1 cm^2·C^-1）, low switching voltages and moderate response time（2.4 s）. Satisfactory results implied that the obtained PEDOT-Me NH2 film is a promising optoelectronic material and holds promise for electrochromic devices and display applications.