Electrically conducting fibers made from rigid rod polymers

W. R. Romanko, P. A. McHatton, H. O. Marcy, C. R. Kannewurf, Tobin J Marks, S. H. Carr

Research output: Contribution to journalArticle

Abstract

New multifunctional polymer fibers and films having high electrical conductivity plus high strength and stiffness have been prepared by several novel techniques. The resulting fibers may have strengths up to 0.5 GPa and room temperature conductivities up to 3 S/sec. All have a matrix of a rigid-rod polymer, and all have a synthetic metal phase dispersed throughout them. Host polymers are poly(p-phenylene terepthalamide) (PPTA), which is essentially DuPont's KevlarR, or poly(p-phenylene benzobisthiazole) (PBZT), and guest synthetic metals are oxidized phthalocyanines. Key to this work has been our ability to exercise specific control over microstructure, which, in turn, determines what will be the final physical properties. This control has been achieved by proper use of known (or estimated) phase relationships and predicted phase transformation kinetics. In some cases the guest species undergoes phase separation during the solidification process itself; in other cases a microstructure is established firstly with the host polymer and then the synthetic metal phase is caused to form inside it. Quantitative modelling of conductivity-composition or strength-composition relationships have been successfully accomplished, based in part on careful charge transport and thermopower measurements.

Original languageEnglish
Pages (from-to)947-950
Number of pages4
JournalSynthetic Metals
Volume41
Issue number3
DOIs
Publication statusPublished - May 6 1991

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Fingerprint Dive into the research topics of 'Electrically conducting fibers made from rigid rod polymers'. Together they form a unique fingerprint.

  • Cite this

    Romanko, W. R., McHatton, P. A., Marcy, H. O., Kannewurf, C. R., Marks, T. J., & Carr, S. H. (1991). Electrically conducting fibers made from rigid rod polymers. Synthetic Metals, 41(3), 947-950. https://doi.org/10.1016/0379-6779(91)91532-F