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http://dx.doi.org/10.12925/jkocs.2019.36.3.813

Influence of Cholesterol Derivatives on the Several Physicochemical Properties of Oleic acid  

Ahn, Beom-Shu (Division of Life Science & Chemistry, Daejin University)
Publication Information
Journal of the Korean Applied Science and Technology / v.36, no.3, 2019 , pp. 813-820 More about this Journal
Abstract
The influence of cholesterol on the physicochemical properties of the oleic acid was clarified through the measurements of density, viscosity, IR, $^1H$ NMR, self-diffusion coefficient for the oleic acid samples containing a small amount of additives such as cholesterol, cholestanol, cholestane, cholesteryl oleate, benzene, and ethanol. Cholesterol, possessing one OH group and one double bond in its molecular structure, largely increased the viscosity and reduced the self-diffusion coefficient and the intramolecular movement of oleic acid. Oleic acid forms a complex with cholesterol as well as with ethanol. On the basis of these complex formations and the existence of the clusters composed of oleic acid dimers, it was known the role and the fundamental mechanism of cholesterol to the intermolercular and intramolecular movements of oleic acid in the liquid state.
Keywords
dimer; complex; additive; viscosity; intramolecular movenent; cluster;
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