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The Structure and Electrical Properties of Polyaniline

Published online by Cambridge University Press:  17 March 2011

Runqing Ou ,
Robert J. Samuels  and
Rosario A. Gerhardt
Runqing Ou
Affiliation:
School of Chemical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0100, U.S.A.
Robert J. Samuels
Affiliation:
School of Chemical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0100, U.S.A.
Rosario A. Gerhardt
Affiliation:
School of Materials Science Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, U.S.A.
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Abstract

The anisotropic structure of EB polyaniline films cast from N, N'-Dimethylpropylene urea (DMPU) solution and stretched to different draw ratios was studied by infrared dichroism. The drawn films were doped with 1.0 M HCl and the electrical properties were studied by impedance spectroscopy. A new test fixture has been developed to measure the in-plane impedance of polymeric films. A Debye-like conductivity relaxation was observed for all the HCl-doped PANI samples. The conductivity along the stretch direction increases with molecular orientation. The in-plane conductivity is significantly higher than the through-plane conductivity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 699: Symposium R – Electrically Based Microstructural Characterization III , 2001 , R7.2
Copyright
Copyright © Materials Research Society 2002

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