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

Published online by Cambridge University Press:  10 February 2011

J. Li ,
T. H. Hill ,
R. V. Gregory  and
D. Perahial
J. Li
Affiliation:
Chemistry Department Center for Advances Engineering Fibers and Films;Clemson University, Clemson SC. 96534-1095
T. H. Hill
Affiliation:
Chemistry Department
R. V. Gregory
Affiliation:
School of Textile, Fiber and Polymer Sciences Center for Advances Engineering Fibers and Films;Clemson University, Clemson SC. 96534-1095
D. Perahial
Affiliation:
Chemistry Department Center for Advances Engineering Fibers and Films;Clemson University, Clemson SC. 96534-1095
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 543: Symposium W – Dynamics in Small Confining Systems IV , 1998 , 219
Copyright
Copyright © Materials Research Society 1999

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