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Electroactive polyimides derived from amino-terminated aniline trimer
Journal article   Peer reviewed

Electroactive polyimides derived from amino-terminated aniline trimer

Z. Y Wang, C Yang, J. P Gao, J Lin, X. S Meng, Y Wei and S LI
Macromolecules, v 31(8), pp 2702-2704
1998
DOI: https://doi.org/10.1021/ma971782s

Abstract

Exact sciences and technology Organic polymers Physicochemistry of polymers Polymers with particular properties Preparation, kinetics, thermodynamics, mechanism and catalysts Applied Sciences
In connection with research on conductive polyaniline, 1 aniline oligomers have been studied as model compounds and explored as new electroactive materials. 2 Many linear aniline oligomers are known, including amino-terminated oligomers such as N,N‘-bis(4‘-aminophenyl)-1,4-quinonediimine (1) and its reduced analogue 3 (N,N‘-bis(4‘-aminophenyl)-1,4-phenylenediamine). 3 Conceivably, the terminal-functionalized aniline oligomers are valuable building blocks for making polyaniline-like, new electroactive polymers. However, multistep synthesis and instability of aniline oligomers in the reduced (leuco) form hampered the large-scale preparation of a functionalized oligomer as a monomer. A general one-step approach was recently established by Wei et al. for the synthesis of the aniline trimer and other trimeric analogues from inexpensive materials. 4 Accordingly, trimer 1 could be easily obtained in large quantity by oxidative coupling of 4,4‘-diaminodiphenylamine or p-phenylenediamine and aniline (Scheme 1). 5,6 The availability of the amino-terminated aniline trimer allowed us to exploit a variety of potentially electroactive polymers such as polyimides and polyamides. In this paper, we report for the first time the synthesis and characterization of electroactive,highmolecularweight,film-formingpolyimides derived from the amino-terminated aniline trimer.

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