Electrochromism of novel triphenylamine-containing polyamide polymers |
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| Authors: | Fuhan Liu Yaxin Zhang Guang Yu Yanjun Hou Haijun Niu |
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| Affiliation: | 1. Key Laboratory of Chemical Engineering Process and Technology for High-Efficiency Conversion, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080 People's Republic of China;2. Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education of the People's Republic of China), Heilongjiang University, Harbin, 150080 People's Republic of China |
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| Abstract: | A series of novel polymers (coded as BCT-1 to BCT-6 (BTC is block triphenylamine)) based on N1-(4-aminophenyl)-N1-phenyl benzene-1,4-diamine, pyridine-2,6-dicarboxylic acid, 4,4′-(phenyl azanediyl)dibenzoic acid (PDA), and different diamine compounds were synthesized successfully through a polymer condensation reaction. For comparison, model polymers, BCT–2,6-pyridine dicarboxylic acid (PA) and BCT–PDA, were synthesized as well. The electrochromic properties of the BCTs were determined via an electrochemical workstation and a UV–visible spectrophotometer. Through electrooxidation, the polymer films showed reversible redox processes and steady color changes. In a comparision of the electrochromic characteristics of the BCTs, almost all the novel polymer films showed a better electrochromism stability, a higher electrochromic coloration efficiency (CE), and a more rapid switching time than BCT–PA and BCT–PDA. Among these polymers, BCT-1 exhibited the highest CE of 266.7 cm2/C, and BCT-4 showed the most rapid switching time (color switching time = 3.08 s and bleaching time = 2.01 s). © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47264. |
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| Keywords: | copolymers electrochemistry optical properties polyamides |
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