you can firstly prepare aqueous solution of sulfunatd polystyrene and then dissolve aniline in it. you can change the ration of sulfunated polystyrene/aniline mmole. after that you can add APS (ammonium persulfate) solution (previously prepared in 1 M HCl) drop-wisely. the polymerization must be carried out in low temperature.
Thanks for the suggestion. I have tried preparing it. But I am stuck at increasing the conductivity of the film, can you suggest me some techniques in increasing the conductivity.
for increasing the conductivity of Polaniline you must be increase the the ratio of polestyrene/aniline. but you must find the optimum ratio for increasing the conductivity because polyestyrene is nonconductive and more increasing it decrease the conductivity. also you can increase the ratio of APS/aniline at lower temperature(for example below -10) for long time(96 h).