Polymerization of Aniline on Polyaniline Membranes

摘要: When solutions of aniline hydrochloride and ammonium peroxydisulfate were separated by a semipermeable cellulose membrane, the reactants met at membrane produced polyaniline (PANI) interface. The oxidative polymerization then proceeded in situ on PANI-cellulose composite membrane. PANI was entirely monomer side membrane; about 80% conversion to observed after 24 h. oxidation with consists transfer electrons from oxidant; it is proposed that pass through which conducting, electroneutrality maintained simultaneous protons. reaction between thus takes place without need for both reactant molecules be physical contact. residual located only its original but product conversion, hydrogen sulfate, found sides Fourier-transform infrared spectroscopy has been used analyze PANI, residues byproducts, prove protonated counter-ions sulfate type. Using this technique, we have detected small differences molecular structure prepared membrane-separated when mixed; also, weights differed marginally. conductivity types same. repeated earlier yielded similar results, confirming concept coupled electron- proton-transfer