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Issue 6, 2011
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Solution-processable, high-Tg, ambipolar polyimide electrochromics bearing pyrenylamine units

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Abstract

Two new pyrenylamine-based polyimides were prepared from the polycondensation reaction of N,N-di(4-aminophenyl)-1-aminopyrene with pyromellitic dianhydride (PMDA) or 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA). The polyimide derived from PMDA is soluble in hot N-methyl-2-pyrrolidone and can be solution-cast into a flexible and strong film. The polyimides showed high glass transition temperatures (Tg > 364 °C) and high thermal stability. Cyclic voltammetry studies revealed that these two polyimides were ambipolar; they showed well-defined and reversible redox couples during both p- and n-doping processes, together with multi-electrochromic behaviors. The polymer films also exhibited high coloration efficiency, high redox stability, and fast response time.

Graphical abstract: Solution-processable, high-Tg, ambipolar polyimide electrochromics bearing pyrenylamine units

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Publication details

The article was received on 12 Aug 2010, accepted on 27 Oct 2010 and first published on 06 Dec 2010


Article type: Paper
DOI: 10.1039/C0JM02642E
J. Mater. Chem., 2011,21, 1746-1754

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    Solution-processable, high-Tg, ambipolar polyimide electrochromics bearing pyrenylamine units

    Y. Kung and S. Hsiao, J. Mater. Chem., 2011, 21, 1746
    DOI: 10.1039/C0JM02642E

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