Charge transport of camphor sulfonic acid-doped polyaniline and poly(o-toluidine) fibers: role of processing

Y. Z. Wang, J. Joo, C. H. Hsu, A. J. Epstein

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)


We report the results of transport studies (temperature-dependent d.c. conductivity, thermopower, microwave frequency conductivity and dielectric constant for camphor sulfonic acid-doped polyaniline (PAN-CSA) and its methyl ring-substituted derivative, poly(o-toluidine) (POT-CSA) fibers prepared in solutions of m-cresol. The results for the PAN-CSA fiber are very similar to those for PAN-CSA film with the presence of some poorer conducting linkages. The POT-CSA fiber shows significantly higher conductivity with much weaker temperature dependence than the earlier studied hydrochloric acid-doped poly(o-toluidine) (POT-HCl) fiber and powder, indicating that it is much closer to the localization-delocalization boundary.

Original languageEnglish
Pages (from-to)207-211
Number of pages5
JournalSynthetic Metals
Issue number3
Publication statusPublished - 1995 Feb
Externally publishedYes

Bibliographical note

Funding Information:
This work is supporteidn part by the Officeo f Naval Researcha nd The Ohio State UniversityC enterfor Materials Research.W e appreciated iscussionsw ith J.P. Pouget.C .-H.H. would like to acknowledgJe.S . DiCristofarof or his assistancein preparationo f the fibers.


  • Camphor sulfonic acid
  • Charge transport
  • Doping
  • Fibers
  • Poly(o-toluidine)
  • Polyaniline

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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