ABSTRACT
PAn’s are most commonly prepared through the chemical or electrochemical oxidative polymerization of the respective aniline monomers in acidic solution. However, a range of polymerization techniques has now been developed, including
1. Electrochemical polymerization 2. Chemical polymerization 3. Photochemically initiated polymerization 4. Enzyme-catalyzed polymerization 5. Polymerization employing electron acceptors
The electrochemical cell arrangement described for production of PPy (see Chapter 2) is applicable to the electropolymerization of PAn. The polymerization cell design is of equal importance for the preparation of PAn as for PPy. All the requirements of the cell design apply, and the same versatility of the form of assembly can be attained, although in practice PAn has not been investigated as extensively as the latter in this regard. The only additional requirement of a polymerization cell for PAn is that the electrode and construction materials should be stable in acid media.
