Issue 6, 2011

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

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

Supplementary files

Article information

Article type
Paper
Submitted
12 Aug 2010
Accepted
27 Oct 2010
First published
06 Dec 2010

J. Mater. Chem., 2011,21, 1746-1754

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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