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Thin Conducting Polymer Films: Effect of Thickness on Wetting Behavior of Polyaniline Ultra Thin Films

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Abstract

Wetting properties and surface structure of polyaniline (PANI) thin films were studied as a function of the polymer thickness, using AFM and neutron reflectivity. Increasing the oxidation state as well as polymer thickness was found to increase the tendency of the polymer to form polycrystalline films. Three main regions with characteristic behavior were observed: ultra thin films of the order of several molecular layers, an intermediate thickness film of several molecular layers to ∼150nm, and films thicker than 150nm. In the ultra thin region the polymer formed nano-scale spherical domains. In the intermediate one, the films tend to be continuous and amorphous. In the thick films, crystallinity was observed.

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Authors and Affiliations

  1. Chemistry Department, Clemson, SC, 96534-1095, USA

    J. Li, T. H. Hill & D. Perahial

  2. School of Textile, Fiber and Polymer Sciences, Clemson, SC, 96534-1095, USA

    R. V. Gregory

  3. Center for Advances Engineering Fibers and Films, Clemson University, Clemson, SC, 96534-1095, USA

    J. Li, R. V. Gregory & D. Perahial

Authors
  1. J. Li
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  2. T. H. Hill
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  3. R. V. Gregory
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  4. D. Perahial
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Li, J., Hill, T.H., Gregory, R.V. et al. Thin Conducting Polymer Films: Effect of Thickness on Wetting Behavior of Polyaniline Ultra Thin Films. MRS Online Proceedings Library 543, 219–224 (1998). https://doi.org/10.1557/PROC-543-219

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  • DOI: https://doi.org/10.1557/PROC-543-219

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