POLYANILINE-MONTMORILLONITE COMPOSITE FIL M-MODIFIED ELECTRODES

The structure of polyaniline formed during polymerisation depends main ly on the porous structure and the thickness of the montmorillonite la yer as well as on the concentration and the anion of strong acid in so lution. The electropolymerisation takes place in the micro- and macrop ores of the clay mineral. Cationic dyes or cationic surfactants, built in the montmorillonite layer, speed up the polymerisation and a compo site poor in polyaniline formes. The formation of the composite in cyc lic voltammetry and polymerisation can be interpreted in terms of the mechanism suggested.