Synthesis of polyaniline nanotubes in the channels of anodic alumina membrane

Syntheses of polyaniline tubes (or rods) inside the pores of anodic alumina membrane by electrochemical and chemical methods are reported. A comparison of polyaniline synthesized in polycarbonate track-etched membrane is made. FT-IR spectra show that the products synthesized inside the pores of templates are emeraldine salts. The morphologies of polyaniline tubes (or rods) synthesized electrochemically in anodic alumina membrane are better than those synthesized in polycarbonate track-etched membrane. ESR spectra reveal that the degree of delocalization of those tubes (or rods) synthesized electrochemically in the anodic alumina membranes is better. The tubes synthesized inside the pore of anodic alumina membrane electrochemically show an enhancement of the electronic conductivity compared to polyaniline bulk materials. The polyaniline tubes synthesized by electrochemical method show better properties (morphology, degree of delocalization and conductivity) compared to those tubes synthesized by chemical method in the same templates.