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Fibers of Conducting Polymers: High Electrical Conductivity Combined with Attractive Mechanical Properties

Published online by Cambridge University Press:  25 February 2011

Alejandro Andreatta ,
S. Tokito ,
P. Smith  and
A. J. Heeger
Alejandro Andreatta
Affiliation:
Materials Department
S. Tokito
Affiliation:
Department of Materials Science and Technology, Kyushu University, Kasuga-shi, Fukuoka 816, JAPAN,
P. Smith
Affiliation:
Materials Department Chemical and Nuclear Engineering Department
A. J. Heeger
Affiliation:
Materials Department Physics Department
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Abstract

We present a summary of our recent results on the electrical and mechanical properties of fibers made from poly(2,5-dimethoxy-p-phenylene vinylene), PDMPV and poly(2,5-thienylene vinylene), PTV, using the precursor polymer methodology, and from polyaniline, PANI, using the method of processing as polyblends with poly-(p-phenylene terephthalamide), PPTA, from sulfuric acid. The solubility of both PANI and PPTA in H2SO4 presents a unique opportunity for co-dissolving and blending PANI and PPTA to exploit the excellent mechanical properties of PPTA and the electrical conductivity of PANI; we summarize the electrical and mechanical properties of such composite fibers. For PDMPV and PTV fibers, we find a strong correlation between the conductivity and the tensile strength (and/or modulus), and we show from basic theoretical concepts that this relationship is an intrinsic feature of conducting polymers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 269
Copyright
Copyright © Materials Research Society 1990

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References

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