Synthesis and Properties of the Dendritic Tetrameric Surfactants

Abstract:

The dendritic tetrameric quaternary ammonium surfactants of tetrachloride•tetra [(2-hydroxyl-3-dodecyldimethylammonium) propyl] ethylenediamine (4C₁₂AC) was synthesized by the ring-opening reaction with epichlorohydrin and ethylenediamine, then by the quaternization reaction with dodecyldimethylamine. The surface tension measurements of 4C₁₂AC give low critical micelle concentrations (cmc), great efficiency in lowering the surface tension, and strong adsorption at air/water interface. The adsorption and corrosion inhibition of 4C₁₂AC on the N-80 steel surface in 20% HCl solution were studied using the weight loss, electrochemical polarization at 25°C. The results indicate that 4C₁₂AC as a mixed-type inhibitor has good inhibition effect on corrosion process, and increasing inhibition efficiency with the increase of the concentration of 4C₁₂AC.

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 1667-1671
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.1667
• Online since: January 2011
• Authors: Jie Li, Qiao Mei Chen, Wei Tong
• Keywords: Adsorption, Corrosion Inhibition, N-80 Steel, Oligomeric Surfactant, Surface Properties

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