POLYANILINE - A POLYMER WITH MANY INTERESTING INTRINSIC REDOX STATES

Due to its environmental stability, high degree of processability and interesting redox properties associated with its chain heteroatom, pol yaniline (PANi) has been one of the most extensively studied electroac tive (conductive) polymers during the past ten years. A number of fine reviews on the synthesis, physicochemical and electrochemical propert ies of the polymer have also appeared during this period. The ability of aniline polymers to exist in a large number of intrinsic redox stat es makes them a unique and interesting class of polymeric materials. T he present review attempts for the first time to summarize the explici t and quantitative dealings with the various intrinsic oxidation state s of PANi and its derivatives that have been made during the past deca de. (C) 1998 Elsevier Science Ltd.