Electrochemical synthesis and spectroelectrochemical properties of nanostructured polyaniline layers in the presence of various polyamidosulfonic acids

• Published in: Protection of metals Vol. 44; no. 6; pp. 577 - 581
• Main Authors: Isakova, A. A., Gribkova, O. L., Nekrasov, A. A., Ivanov, V. F., Tverskoi, V. A., Vannikov, A. V.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01.11.2008; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemical contaminants; Chemistry and Materials Science; Corrosion and Coatings; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Metallic Materials; Nanoscale and Nanostructured Materials and Coatings; Tribology; 78.67.Bf
• ISSN: 0033-1732; 2070-2051; 1608-327X; 2070-206X
• DOI: 10.1134/S0033173208060076

Electrochemical matrix polymerization of nanostructured polyaniline layers in the presence of polyamidosulfonic acids differing in the rigidity of the polymer framework was studied in a wide concentration range. The spectroscopic, electrochemical, and morphological properties of the resulting layers were examined. It was found that the accelerated electropolymerization is due to (1) preliminary association of aniline with the sulfo groups of the polyacids and (2) a high local concentration of the protons near its macromolecule. The use of a polyacid with a rigid polymer framework afforded an interpolymer complex with polyaniline in side chains. With a semirigid matrix, both a two-strand complex (characteristic of an acid matrix with a flexible chain) and a branched complex were obtained.