MOLECULAR SELF-ASSEMBLY OF SULFONATED POLYANILINE THIN FILMS

W. S. Sim () and F. Y. Goh
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W. S. Sim: Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260, Singapore
F. Y. Goh: Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260, Singapore

Surface Review and Letters (SRL), 2001, vol. 08, issue 05, 491-496

Abstract: Multilayer polymer thin films with well-defined molecular architectures have been fabricated by an electrostatic self-assembly process involving sequential exposure of glass substrates to polyelectrolyte solutions of sulfonated polyaniline and hexadimethrine bromide. Ultraviolet-Visible (UV-Vis) Spectroscopy indicates layer-by-layer growth of alternating monolayers of oppositely charged polymer chains whose structural integrity is verified by X-ray Photoelectron Spectroscopy (XPS). The surface roughness is measured to be ~3 nm by Atomic Force Microscopy (AFM). The potential applications of these films in optoelectronic devices are discussed.

Date: 2001
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DOI: 10.1142/S0218625X01001348

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