Effect of methanol on morphology of polyaniline

Constant potential method is used to synthesize polyaniline (PANI) nanofibers in a solution containing methanol. According to shaping theory, the reasons about forming polyaniline nanofibers were suggested. The effects of the synthesis parameters, such as monomer concentration, methanol concentration, HCl concentration, electrode potential, polymerization time, and reaction temperature on the morphology of the PANI films have been investigated. Scanning electron microscopy results was used to characterize the morphology of PANI nanofibers. Both UV–vis absorption spectra and FTIR spectra indicate that there exists interaction between methanol molecules and polyaniline chains.