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Durham University

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Publication details for Professor Andy Monkman

Kugler, T, Rasmusson, JR, Osterholm, JE, Monkman, AP & Salaneck, WR (1996). Atomic force microscopy investigations of morphologies in ultrathin polyaniline films. Synthetic Metals 76(1-3): 181-185.
  • Publication type: Journal Article
  • ISSN/ISBN: 0379-6779
  • Keywords: microscopy; morphology; films; polyaniline

Author(s) from Durham

Abstract

Preliminary results of two studies of the morphology of polyaniline,
studied by means of atomic force microscopy (AFM), are reported. (1)
Emeraldine base (EB)/camphorsulfonic acid (CSA) highly oriented fibers
were prepared by a 'hot-drawing' technique. In addition to imaging the
drawn fibers themselves, within the fibers, an internal structure with
a clear orientation in the drawing direction is observed. (2)
Submonolayer coverages of EB/CSA spin-coated from a chloroform solution
onto highly oriented graphite (HOPG) were studied, and geometrically
shaped crystalline islands are observed. The internal structure of
these islands is attributed to the presence of compact coils.
Morphological changes upon 'secondary doping' using m-cresol vapor were
studied. Upon secondary doping, the crystallinity is lost.