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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Multichromic Polymers Containing Alternating Bi(3-Methoxythiophene) and Triphenylamine Based Units with
Yingfei Hou1, Lingqian Kong2, Xiuping Ju3
1State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China. houyf@upc.edu.cn.
Abstract:
Two novel triphenylamine-based thiophene derivative monomers, 4-cyano-4',4″-di(4-methoxythiophen-2-yl)triphenylamine and 4-methoxy-4',4″-di(4-methoxythiophen-2-yl)triphenylamine, were successfully synthesized. The corresponding polymers including poly (4-cyano-4',4″-di(4-methoxythiophen-2-yl)triphenylamine) and poly (4-methoxy-4',4″-di(4-methoxythiophen-2-yl)triphenylamine) were electrochemically synthesized and characterized by multiple test method. The electrochemical measurements and spectroelectrochemical analyses revealed that both of the two polymers had quasi-reversible redox behavior and multi-electrochromic properties. The two polymer films showed reversible electrochemical oxidation, excellent optical contrasts in NIR region (62% at 1070 nm for the first polymer, and 86% at 1255 nm for the second polymer), satisfactory coloration efficiencies and fast switching times. The research on the application of the as prepared polymer in the fabrication of electrochromic device was also conducted, employing PCMTPA or PMMTPA as the anodically coloring materials.
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