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Journal of Materials Science

, Volume 41, Issue 10, pp 2851–2858 | Cite as

Synthesis of corrosion inhibitive poly(2,5-dimethylaniline) coatings on low carbon steel

  • Vandana Shinde
  • S. R. Sainkar
  • S. A. Gangal
  • P. P. PatilEmail author
Article

Abstract

An attempt has been made towards the synthesis of strongly adherent poly(2,5-dimethylaniline) coatings on low carbon steel substrates, with an objective of examining the possibility of using this polymer for corrosion protection of steel in chloride environment. In this work, the poly(2,5-dimethylaniline) coatings were synthesized by electrochemical polymerization of 2,5-dimethylaniline using sodium salicylate as a supporting electrolyte. The characterization of these coatings was carried out by cyclic voltammetry, UV-visible absorption spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy. The results of these characterizations indicate that the aqueous salicylate solution is a suitable medium for the electrochemical polymerization of 2,5-dimethylaniline to generate strongly adherent and smooth poly(2,5-dimethylaniline) coatings on low carbon steel substrates. The performance of poly(2,5-dimethylaniline) as protective coating against corrosion of low carbon steel in aqueous 3% NaCl was assessed by the open circuit potential and the potentiodynamic polarization measurements. The potentiodynamic polarization measurement reveals that the poly(2,5-dimethylaniline) coating increases the corrosion potential and reduces the corrosion rate of low carbon steel almost by a factor of 50. This study clearly ascertains that the poly(2,5-dimethylaniline) has outstanding capability to protect low carbon steel against corrosion in chloride environment.

Keywords

Fourier Transform Infrared Spectroscopy Corrosion Rate Salicylate Absorption Spectroscopy Corrosion Potential 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media, Inc. 2006

Authors and Affiliations

  • Vandana Shinde
    • 1
  • S. R. Sainkar
    • 2
  • S. A. Gangal
    • 3
  • P. P. Patil
    • 1
    Email author
  1. 1.Department of PhysicsNorth Maharashtra UniversityJalgaonIndia
  2. 2.Centre for Materials CharacterizationNational Chemical LaboratoryPuneIndia
  3. 3.Department of Electronic ScienceUniversity of PoonaPuneIndia

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