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

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.

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Correspondence to Alejandro Andreatta.

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Andreatta, A., Tokito, S., Smith, P. et al. Fibers of Conducting Polymers: High Electrical Conductivity Combined with Attractive Mechanical Properties. MRS Online Proceedings Library 173, 269–282 (1989). https://doi.org/10.1557/PROC-173-269

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