Tuning of different polyaniline nanostructures from a coacervate gel/sol template

The morphology of polyaniline nanostructure is tuned from nanotube to nanofiber to three-dimensional network by polymerizing aniline in a cetyl trimethyl ammonium bromide (CTAB)–lauric acid (LA) complex coacervate gel template by changing the physical state of initiator and also that of the gel. This synthesis is easily reproducible even in large scale, very cheap, and one-step method. The HCl doped samples have average conductivities in the ranges 10−2–10−3 S/cm that may be considered high enough in view of potential applications in several fields.