Corrosion Protection of Stainless Steel by Poly(Carbazole-co-pyrrole) Films Deposited on TiO2 Sol-Gel Film

Unver I. C., Bereket G., Duran B.

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, vol.57, pp.242-250, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57
  • Publication Date: 2018
  • Doi Number: 10.1080/03602559.2017.1320723
  • Journal Name: POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.242-250
  • Keywords: Coating, copolymer, corrosion, sol-gel, steel, POLYPYRROLE COATINGS, BIPOLAR PLATES, POLYANILINE, PERFORMANCE, COMPOSITE, COPOLYMER, PASSIVITY
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

The poly(carbazole-co-pyrrole) copolymer was synthesized on TiO2 sol-gel precoated 304 stainless steel (TiO2) by cyclic voltammetry in tetrabutylammonium perchlorate containing acetonitrile solution. The synthesized coating was characterized by attenuated total reflectance-Fourier transform infrared spectroscopy, scanning electron microscopy, and solid-state conductivity measurements. Corrosion protection behavior of the TiO2/poly(carbazole-co-pyrrole)-coated steel was evaluated by open circuit potential-time curves, potentiodynamic polarization, and electrochemical impedance spectroscopy methods. Corrosion test results showed that TiO2/poly(carbazole-co-pyrrole) composite film enhanced corrosion resistance of stainless steel up to 50 days of immersion in 0.1M HCl corrosive medium.