Methyl Cellulose Stabilized Polyaniline Dispersions

Abstract

Methyl cellulose has been used as a stabilizer in the oxidative dispersion polymerization of aniline using ammonium persulfate oxidant. The dispersion polymerization is unsuccessful in water but successfully effected in aqueous alcohol media. Evidence has been presented that the stabilizer incorporation in polyaniline is increasingly facilitated as the alcohol concentration of the medium is increased. Particle morphology changes from long needle-shaped to oblong (doublets of spheres) or spherical as the alcohol concentration is increased from 30% to 70%.