Potentiodynamic synthesis of poly(N-vinyl carbazole) films on stainless steel to enhance corrosion resistance in sulfuric acid solution

Duran B.

POLYMER-PLASTICS TECHNOLOGY AND MATERIALS, vol.61, no.16, pp.1833-1843, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 16
  • Publication Date: 2022
  • Doi Number: 10.1080/25740881.2022.2084413
  • Journal Name: POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1833-1843
  • Keywords: 304 stainless steel, corrosion, electropolymerization, CONDUCTING POLYMER-COATINGS, ANTICORROSIVE PROPERTIES, PROTECTION PERFORMANCE, COMPOSITE COATINGS, POLYPYRROLE FILMS, BIPOLAR PLATES, POLYCARBAZOLE, ELECTROLYTE, ELECTROPOLYMERIZATION, POLYANILINE
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

This study concerns the use of potentiodynamically synthesized poly(N-vinyl carbazole) films (PNVnCz) for corrosion protection of stainless steel (SS). The PNVnCz films were synthesized on SS by cyclic voltammetry from nonaqueous acetonitrile solution of tetrabutylammonium perchlorate and N-vinyl carbazole. The resulting PNVnCz films were characterized by ATR-FTIR and SEM. The ability of PNVnCz films to serve as corrosion protective coatings was evaluated using E-ocp-time curves, potentiodynamic polarization, and EIS techniques in 1 M H2SO4 solution. Corrosion test results revealed that PNVnCz films provide anodic protection and reduce corrosion rate of SS six times at the end of 5 days' immersion.