Synthesis and electrochromic properties of aromatic polyetherimides based on a triphenylamine‐dietheramine monomer |
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| Authors: | Sheng‐Huei Hsiao Hui‐Min Wang Pei‐Chi Chang Yu‐Ruei Kung Tzong‐Ming Lee |
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| Institution: | 1. Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, , Taipei, 10608 Taiwan;2. Division of Organic Opto‐Electronic Materials & Applications, Industrial Technology Research Institute, , Hsinchu, 31040 Taiwan |
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| Abstract: | A series of electroactive polyetherimides (PEIs) with triphenylamine (TPA) units were prepared from the polycondensation reactions of 4,4′‐bis(p‐aminophenoxy)triphenylamine with aromatic tetracarboxylic dianhydrides via a conventional two‐step technique. The PEIs showed high thermal stability, with glass‐transition temperatures of 234–282 °C and decomposition temperatures in excess of 500 °C. They showed well‐defined and reversible redox couples during both p‐ and n‐doping processes, together with multielectrochromic behaviors. These polymers exhibited enhanced redox‐stability and electrochromic performance as compared with the corresponding analogs without the phenoxy spacer between the TPA and imide units. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2925–2938 |
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| Keywords: | electrochemistry electrochromic properties polyimides redox polymers triphenylamine |
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