Syntheses of Polymerized Films on Mild Steels by Electro‐oxidation and Electroreduction and Their Corrosion Resistance

DOI Web Site Web Site 被引用文献6件
  • Isao Sekine
    Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278, Japan
  • Kazuki Kohara
    Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278, Japan
  • Takashi Sugiyama
    Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278, Japan
  • Makoto Yuasa
    Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278, Japan

書誌事項

公開日
1992-11-01
権利情報
  • https://iopscience.iop.org/page/copyright
  • https://iopscience.iop.org/info/page/text-and-data-mining
DOI
  • 10.1149/1.2069037
公開者
The Electrochemical Society

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説明

Polymer films, based on aniline‐, phenol‐, normal vinyl‐ and heterocyclic/vinyl‐type monomers, were synthesized on mild steel by various electropolymerizations (EPs), and their corrosion resistance and structure were investigated because a new coating system with corrosion resistance for mild steel has been obtained. The relationship between synthetic method, structure, and function (corrosion resistance) for coated mild steel is discussed. In electro‐oxidation polymerization (EOP) incomplete, porous, and thin films were formed on steel surfaces, while in electroreduction polymerization (ERP), complete, more compact, and thicker films were formed on steel surfaces in comparison with EOP films. The most corrosion‐preventive film under this experimental condition was a poly(2‐vinylpyridine) film with an inhibition efficiency (η) of corrosion of about 80–90%. The most effective EP method was a constant potential electrolysis using a two‐electrode cell with an η value of more than 90%. Since the organic layer formed during EP was ionic and the EP of 2‐vinylpyridine (monomer) was promoted, the thick poly(2‐vinylpyridine) film was formed on the steel surface. The results of structural analysis suggest that, (i) poly(2‐vinylpyridine) film, , was formed on the steel surface by EP, (ii) the coated steel was composed of polymer and steel layers, and oxidation products were not present in the interface, and (iii) the solvents in the film were evaporated and the thermal‐polymerization of poly(2‐vinylpyridine) continued with curing.

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