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Light scattering study on the micellar systems solubilizing a fatty acid

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Abstract

The effect of oleic acid on the aggregational behavior of the α-sulfonated fatty acid methyl ester sodium salt (α-SFMe) and sodium linear C12/C14-alkylbenzene-sulfonate (LAS) has been studied using a light-scattering method. The solubilizing capacity of α-SFMe was larger than that of LAS, and depended both on the number of micelles in the surfactant solution and the solubilized amount per micelle.

When the micellar weights for the α-SFMe and LAS systems were determined at the various oleic acid/surfactant ratios, the micellar weights initially decreased by small amounts of solubilizate and then increased with the further increase in the solubilized amounts. It was found that the solubilization process is accompanied by a reconstitution of the micelles.

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Authors and Affiliations

  1. Surface Science Research Center, Lion Corporation, 7-13-12, Hirai, Edogawa-ku, 132, Tokyo, Japan

    M. Fujiwara, Y. Kaneko & K. Ohbu

Authors
  1. M. Fujiwara
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  2. Y. Kaneko
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  3. K. Ohbu
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Fujiwara, M., Kaneko, Y. & Ohbu, K. Light scattering study on the micellar systems solubilizing a fatty acid. Colloid Polym Sci 273, 1055–1059 (1995). https://doi.org/10.1007/BF00657673

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  • DOI: https://doi.org/10.1007/BF00657673

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