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Electroactive Polymer with Oligoanilines in the Main Chain: Synthesis, Characterization and Dielectric Properties

✍ Scribed by Junfeng Zhang; Danming Chao; Lili Cui; Xincai Liu; Wanjin Zhang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
313 KB
Volume
210
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

An electroactive polymer with well‐defined oligoanilines in the main chain has been prepared by oxidative coupling polymerization. The detailed characteristics of the polymer were systematically studied by FT‐IR, ^1^H NMR, GPC and XRD. Its electrochemical behavior was explored with UV‐Vis spectra and cyclic voltammetry showing that its intrinsic electroactivity was maintained and exhibited three distinct reversible oxidative states. Its electrical conductivity is about 3.91 × 10^−4^ S · cm^−1^ in HCl‐doped form at room temperature. Furthermore, the polymer displays a dielectric constant of 48.4 and 13.6 at 10 and 1 MHz, respectively, mainly attributed to the improvement in delocalized charge density and electrical conductivity of the polymer by introduction of the conjugated oligoaniline segments.

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