Journal
JOURNAL OF SURFACTANTS AND DETERGENTS
Volume 13, Issue 3, Pages 247-254Publisher
WILEY
DOI: 10.1007/s11743-009-1168-9
Keywords
Cationic surfactants; Imidazoline derivatives; Corrosion inhibitors
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In this study, cationic surfactants having different alkyl chain lengths were prepared by amidation of lauric, myristic, palmitic, stearic, oleic acids with diethylene triamine. The products were quaternized using chloroacetic acid. The chemical structure of the prepared compounds was elucidated using different spectroscopic techniques. The critical micelle concentration (CMC) and the free energy of the micellization and adsorption of these compounds were determined by surface tension and conductivity measurements. The products were evaluated as surface-active agents as well as corrosion inhibitors for steel alloy in 1 M hydrochloric and sulfuric acid, the results indicate that these materials have a high efficiency as corrosion inhibitors and as surface active agents. These results were correlated with the chemical structure of the prepared compounds.
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