Polyaniline emeraldine salt fibers are best prepared by electrospinning a blend of PANI (often as emeraldine base doped with acids like CSA or DBSA) with a carrier polymer (e.g., PVDF, PVP, or gelatin) dissolved in suitable solvents like hexafluoroisopropanol or DMSO. Optimizing solution homogeneity and electrospinning parameters is key to obtaining uniform, conductive fibers.
I agree with Abdelhak. You must know that PANI is brittle. It cannot make fiber on its own. You have to take some support polymer, semipolar in nature. You have to choose the solvent as required. PANI will remain basically in the form of filler. To make it conducting it has to be doped with suitable stable dopant like CSA, DBSA, diphenyl phosphate so that the doped polymer will remain compatible with the polymer.
The other options may be tried:
1. by using polystyrene sulphonic acid as dopant and host polymer and electrospinning may be tried from polar solvent
3. Fatty alcohol diphosphate can be used to dope PANI as well as help in formation of fiber.