Characterization and Electrical Properties of Poly(aniline-co-2,4-dimethoxyaniline) Nanostructures Prepared by Interfacial Polymerization

Copolymer nanofibers of aniline and 2,4-dimethoxyaniline were chemically synthesized in various molar ratios of the comonomers by aqueous/organic phase interfacial oxidative polymerization in the presence of acid dopant. UV–visible spectroscopy, FT-IR, 1H NMR measurements, and TGA were used to confirm the molecular structure of the doped copolymers. Morphology of synthesized copolymer nanostructures was investigated using transmission electron microscope, which indicate the formation of one-dimensional (1D) nanofibers with average diameter of 4–10 nm. The conductivity of the nanofibers increased significantly with increased proportion of aniline in the copolymer.