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Effects of ethoxylate structure on surfactant properties of ethoxylated fatty methyl esters
Author(s) -
Hama I.,
Sakaki M.,
Sasamoto H.
Publication year - 1997
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-997-0225-7
Subject(s) - ethylene oxide , pulmonary surfactant , chemistry , surface tension , methyl oleate , wetting , organic chemistry , fatty acid , fatty acid methyl ester , fatty alcohol , adduct , polymer chemistry , chromatography , catalysis , chemical engineering , copolymer , polymer , biochemistry , biodiesel , physics , quantum mechanics , engineering
In the presence of a surface‐modified Al‐Mg composite oxide catalyst, ethoxylated fatty methyl esters with different hydrophobic group structures and different chain‐lengths of polyoxyethylene were synthesized from fatty methyl esters by direct ethoxylation. Each ethoxylated fatty methyl ester obtained showed a narrow ethylene oxide (EO) adduct distribution. Foaming, ability to lower surface tension, ability to lower interfacial tension, wettability, and dye solubilization were measured. Ethoxylated methyl laurate with about 60 to 70% EO content was found to be the most suitable as a base surfactant for household detergents