Ele ctrochemical study of nanocomposite poly aniline / polyvi nyl alcohol in an acid environment

Sever al researcher s have emp loyed differ ent post treatments after the synthes is of polymer films; however, there are no systematic studies on this aspect. On the oth er hand, when a polya niline layer was deposite d first and the electropo lymerization was conti nued in a solution of poly aniline (P ANI), a pr ogressive tr ansformatio n of the electrochemical behavior of the original polyanili ne film has been observed. The polyaniline promotes the polymerization by provid ing electrocatalytic sites and nuc leation cen ters. Thus, the conducting polyaniline surface is protect ed well and leads to bet ter modific ation. Chemical polymerization of PANI also le ads to newer polymers. Interestingly, both then ewly formed polymers are found to have nanostructure. The preparation of nanostruc tured conducting materials has become an important branch of materials research. [۱-۵]