Fabrication of Aligned Polyaniline Nanofiber Array via a Facile Wet Chemical Process

In this work, we demonstrate for the first time a template free approach to synthesize aligned polyaniline nanofiber (PN) array on a passivated gold (Au) substrate via a facile wet chemical process. The Au surface was first modified using 4‐aminothiophenol (4‐ATP) to afford the surface functionality...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2009-06, Vol.30 (12), p.1027-1032
Main Authors: Sun, Qunhui, Bi, Wu, Fuller, Thomas F., Ding, Yong, Deng, Yulin
Format: Article
Language:English
Subjects:
4-aminothiophenol
aligned pattern
Applied sciences
array
Exact sciences and technology
nanofibers
Organic polymers
Physicochemistry of polymers
polyaniline
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:In this work, we demonstrate for the first time a template free approach to synthesize aligned polyaniline nanofiber (PN) array on a passivated gold (Au) substrate via a facile wet chemical process. The Au surface was first modified using 4‐aminothiophenol (4‐ATP) to afford the surface functionality, followed subsequently by an oxidation polymerization of aniline (AN) monomer in an aqueous medium using ammonium persulfate as the oxidant and tartaric acid as the doping agent. The results show that a vertically aligned PANI nanofiber array with individual fiber diameters of ca. 100 nm, heights of ca. 600 nm and a packing density of ca. 40 pieces·µm−2, was synthesized. A self‐assembled monolayer of 4‐aminothiophenol on a gold surface was demonstrated for the first time to be effective in guiding the growth of aligned polyaniline nanofibers for fabricating a patterned array.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200900064