Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Studies on the Formation and Stability of Colloids (II) : pH and Temperature Effects on the Secondary Micelle Formation of Sodium Deoxycholate

  • Published : 1987.04.20
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Abstract

The micelle formation of NaDC was studied by fluorometric and viscometric measurements. The thermodynamic parameters of the primary and secondary micellization of the bile salt were evaluated. The primary micelle formation was appeared to be an entropy driven process due to hydrophobic effect, while the major driving force for secondary micelle formation of the bile salt is the large negative enthalpy. The secondary micelle provides less hydrophobic environment to pyrene than the primary micelle does. The cooperative aggregation of primary micelles via hvdrogen bond formation was proposed for the secondary micelle formation.

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