The interface between polyaniline (PANI) and a polymer electrolyte (PAMPS)
containing functionalized sulfonate anions (AMPS) presents a particular str
ucture (double-strand polymer) allowing the transfer of carriers, even when
PANI is oxidized up to an insulating form. The conduction is detected by t
he growth of an LR optical absorption. The role of a PANI treatment by m-cr
esol is investigated.