Preparation of polyaniline nanostructures using sodium dodecylsulphate

Polyaniline (PANI) nanostructures with an average diameter of 30-35 nm and a conductivity of 2.13-1.15 × 10− 1 S/cm were prepared using sodium dodecylsulfate (SDS) emulsion in the absence of any added acid. Fiber like nanostructures was observed after 1 and 2 h, whereas an aggregated particulate morphology was observed for 4 and 24 h. The effect of the reaction time on the PANI morphology was monitored using field-emission scanning electron microscopy (FESEM). Furthermore, the effects of the reaction time on the chemical structure, conductivity and crystallinity of PANI are reported.