Abstract
High purity alkanolamides were prepared by the sodium catalyzed reaction of methyl stearate, methyl palmitate and methyl laurate with ethanolamine, 2-hydroxypropylamine, 3-hydroxypropylamine and N-methyl N-hydroxyethylamine. The effect of structure on the surface active properties of the sulfation products was investigated. Stability studies showed that sulfated N-methyl N-hydroxyethylstearamide hydrolyzed rapidly by first order kinetics in acid or base. Sulfated hydroxyalkyl primary amides hydrolyzed slower in basic media following second order kinetics. Methyl groups attached to the N atom or to C in the short aliphatic chain improved solubility but had little effect on critical micelle concentration. The alkanolamides of palmitic and stearic acids were good detergents and lime soap dispersing agents.
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E. Utiliz. Res. Dev. Div., ARS, USDA
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Weil, J.K., Parris, N. & Stirton, A.J. Synthesis and properties of sulfated alkanolamides. J Am Oil Chem Soc 47, 91–93 (1970). https://doi.org/10.1007/BF02612944
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DOI: https://doi.org/10.1007/BF02612944