Sun Qunhui, Bi Wu, Fuller Thomas F, Ding Yong, Deng Yulin
Paper Science and Technology, Georgia Institute of Technology, USA; Current address: New Span Opto-Technology, Miami, FL. 16155 SW, 117th Ave. Suite A-15, Miami, FL 33177, USA.
Macromol Rapid Commun. 2009 Jun 17;30(12):1027-32. doi: 10.1002/marc.200900064. Epub 2009 Apr 21.
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.
