Summary
Conducting-polymer nanofibers — especially those based on polyaniline (PANI) — are of wide interest for electronic, magnetic, optical and biomedical applications, and electrospinning is a promising way to make them. The difficulty is that PANI itself is hard to electrospin: it dissolves poorly in common solvents, so it is usually blended with a second, spinnable polymer, but that insulating carrier reduces the conductivity of the resulting fibres. This work focuses on poly(4-aminodiphenylaniline), a polyaniline-type conducting polymer, and reviews advances in preparing it as electrospun nanofibers. The authors discuss synthesis routes (including a “green” catalytic method) and the processing strategies that allow high-purity conducting fibres to be produced, aiming to preserve electrical performance while achieving a fine, uniform nanofibrous morphology.