α-Sulfonated fatty acid esters: I. Structural effects of sodium α-sulfonated fatty acid higher alcohol esters on surface-active properties and emulsification ability |
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| Authors: | T Okano J Tanabe M Fukuda M Tanaka |
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| Affiliation: | (1) Lion Corp., Applied Research Lab 8, 7-13-12, Hirai, Edogawa-ku, 132 Tokyo, Japan |
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| Abstract: | The surface-active properties and emulsification ability of sodium α-sulfonated fatty acid esters, CmH2m+1CH-(SO3Na)COOCnH2n+1, were studied as a function of the hydrophobic alkyl chainlength in the fatty acid (m=8−16) and the alcohol (n=8−18). As
a result, it was discovered that sodium α-sulfonated fatty acid esters have a structural effect on the Krafft point different
from that of amphiphiles with short alkyl chains. Moreover, some of the α-sulfonated fatty acid esters have quite low interfacial
tensions, as well as non-foaming properties, which depend upon the total (m+n) number of carbon atoms in the alkyl chains. |
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| Keywords: | α -Sulfonated fatty acid critical micelle concentration emulsification ability foam property higher alcohol esters Krafft point non-foaming emulsifier structural effects surface active properties two hydrophobic alkyl chains |
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