Abstract
The nucleation of the solid phase of interpolymer complexes of polyaniline (PAn) during electropolymerization of aniline on highly orientated pyrolytic graphite in aqueous solutions of hydrochloric acid and polymer sulfoacids, which differ in the rigidity of the polymer framework, was studied in situ by atomic force microscopy. The rigidity of the polyacid chain, which determines possible changes in its conformation in solution and its ability to adapt its conformation to that of the rigid conjugated PAn macromolecule, directly affects the shape and growth rate of the nuclei of solid phase of PAn and the film morphology at the early stages of electropolymerization. The rigid-chain and semirigid-chain polymer acids, which have the conformation of an elongated or slightly bent rod in solution, determine the conformation of the interpolymer complex nuclei. In contrast, in the presence of flexible-chain polyacids, the process is mainly controlled by the conformation of PAn macromolecules.
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Original Russian Text © A.A. Nekrasov, O.L. Gribkova, V.I. Zolotarevskii, A.A. Isakova, V.F. Ivanov, A.V. Vannikov, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 12, pp. 1235–1249.
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Nekrasov, A.A., Gribkova, O.L., Zolotarevskii, V.I. et al. Effect of polymer sulfoacids with varying chain rigidity on the nucleation of their interpolymer complexes with polyaniline during electropolymerization on highly orientated pyrolytic graphite. Russ J Electrochem 50, 1105–1117 (2014). https://doi.org/10.1134/S1023193514120040
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DOI: https://doi.org/10.1134/S1023193514120040