Preparation and characterization of polyaniline nanostructures via a interfacial polymerization method

Polyaniline nanostructures have been formed successfully via a interfacial polymerization method using different organic solvents. These materials were characterized by using IR, UV–vis, TGA, SEM, TEM and AC-impedance spectroscopy. In impedance plot of polyaniline (interfacial polymerization) using different organic solvents, different equivalent circuits with distinct nature of arcs have been observed indicating different distribution ratio indicating diffusion-limited interfacial control of nucleation and growth of polyaniline nanostructures dependent on the different distribution ratio and different rates of transfer of aniline from organic phase to aqueous phase in different solvents.

► Shape and size of PAni aggregates depend on the history of synthesis.
► DLA of PAni controlled by distribution ratio of aniline in different solvents.
► AC impedance spectroscopic studies have been made for first time on PAni.
► Relaxation time of PAni polymerized by IP method depends on synthetic conditions.