Electrodeposition of adherent polyaniline-polypyrrole composite coatings on low carbon steel

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Abstract

Uniform and adherent polyaniline-polypyrrole composite coatings were electro-chemically polymerized on low carbon steel under aqueous conditions. The structure of the coatings was analyzed as a function of electrochemical deposition parameters (molar feed ratio of monomers and reaction time). X-ray photoelectron spectroscopy (XPS) was used to study the chemical composition of the coatings and also the amount of dopants (oxalate ions) incorporated into the polymeric coatings. The morphology of the coatings was studied using scanning electron microscopy (SEM). The adhesion strength of the coatings was measured using simple lap joint tests. The composite coatings formed by an equimolar feed of the monomers were much more adherent than the homopolymeric coatings.

Original languageEnglish (US)
Pages (from-to)835-860
Number of pages26
JournalJournal of Adhesion
Volume78
Issue number10
DOIs
StatePublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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