Synthesis of Quaternary, Long-Chain N-Alkyl Amides and Their Corrosion Inhibition in Acidic Media

ÖZTÜRK S., YILDIRIM A., Cetin M., TAVASLI M.

JOURNAL OF SURFACTANTS AND DETERGENTS, vol.17, no.3, pp.471-481, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 3
  • Publication Date: 2014
  • Doi Number: 10.1007/s11743-014-1566-5
  • Journal Name: JOURNAL OF SURFACTANTS AND DETERGENTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.471-481
  • Keywords: Cationic surfactants, Acidic medium, Carbon steel, Corrosion inhibitor, Surface studies, Scanning electron microscopy, CATIONIC GEMINI SURFACTANT, CARBON-STEEL, MILD-STEEL, CHLORIDE-ION, PERFORMANCE, ADSORPTION, SYNERGISM, BEHAVIOR, BROMIDE, HALIDES
  • Bursa Uludag University Affiliated: Yes

Abstract

New cationic surfactants were synthesized by the quaternization of a number of straight-chain amide derivatives with triethylamine or pyridine. The corrosion inhibition tests of the surface-active compounds were performed at room temperature for 24 h on carbon steel coupons in acidic media using the gravimetric method. The acidic media used were 1.5 M HCl and 1.5 M H2SO4. Almost all of the synthesized cationic surfactants showed efficient inhibition of corrosion in the test. To establish the inhibition efficiencies of the inhibitors, surface characterization studies (contact angle measurements, SEM analysis and optical profilometer images) of the metal coupons used were performed.