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Durham University

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Publication details for Professor Andy Monkman

MONKMAN, AP & ADAMS, P (1991). OPTICAL AND ELECTRONIC-PROPERTIES OF STRETCH-ORIENTED SOLUTION-CAST POLYANILINE FILMS. Synthetic Metals 40(1): 87-96.
  • Publication type: Journal Article
  • ISSN/ISBN: 0379-6779
  • Keywords: POLYACETYLENE

Author(s) from Durham

Abstract

We have prepared and characterized polyaniline in the form of thin
free-standing films and films formed by spin coating. The films are
formed from solution with chemically prepared base polyaniline
(emeraldine) which is dissolved in N-methyl-2-pyrrolidone. The films,
as prepared and doped with HCl, have conductivities in the range 60-70
S/cm. Optical reflection spectra reveal metallic-like films.
Furthermore, we have been able to align the polyaniline (PANi) chains
using uniaxial stress. Elongation ratios of up to 650% have been
achieved so far. When doped with HCl these films yield conductivities
of up to 350 S/cm and anisotropy sigma-parallel to/sigma-perpendicular
to of up to 24. Initial polarized reflection spectra reveal optical
anisotropy.