Phase equilibria have been studied for the system composed of sodium dodecyl sulfate, hexylamine, heptane, and water. Greatest emphasis has been placed on the lamellar liquid crystal region and X-ray diffraction measurements. Equations are developed or modified to allow determination of the degree of penetration of water into the amphiphilic double layer as a function of water or amphiphile concentration. It is found that the interfacial area occupied by the polar or ionic head groups of amphiphiles increases with increasing water content. © 1987 Academic Press, Inc. All rights reserved.
J. Fang and R. L. Venable, "Lamellar Liquid Crystal And Other Phases In The System Sodium Dodecyl Sulfate, Hexylamine, Water, And Heptane," Journal of Colloid And Interface Science, vol. 117, no. 2, pp. 448 - 459, Elsevier, Jan 1987.
The definitive version is available at https://doi.org/10.1016/0021-9797(87)90405-X
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01 Jan 1987