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2010•Journal of Chemical & Engineering DataRequires access

Surface Tension and Solubility of Allyl-β-cyclodextrin

Changjun Zou, Haomin Wu, Lan Ma

Open publisher page 4 citations

Abstract

The changes for the surface tension of this derivative of β-cyclodextrin (β-CD) at a pH between 4 and 10 and a temperature of 298.15 K and its solubilities at temperatures between (273.15 and 353.15) K were investigated. The results of these studies show that the minimum value, 40.5 mN·m −1, for the surface tension of allyl-β-CD appears in an alkaline environment, that the critical micelle concentration (cmc) is 9·10 −3 mol·L −1, and that the solubility of allyl-β-CD increases by at least 50 % compared with that of β-CD. Finally, according to the analysis with ideal solution model, the optimal solubility model is obtained.

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What this paper is about

The changes for the surface tension of this derivative of β-cyclodextrin (β-CD) at a pH between 4 and 10 and a temperature of 298.15 K and its solubilities at temperatures between (273.15 and 353.15) K were investigated. The results of these studies show that the minimum value, 40.5 mN·m −1, for the surface tension of allyl-β-CD appears in an alkaline environment, that the critical micelle concentration (cmc) is 9·10 −3 mol·L −1, and that the solubility of allyl-β-CD increases by at least 50 % compared with that of β-CD. Finally, according to the analysis with ideal solution model, the optimal solubility model is obtained.

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Available abstract

The changes for the surface tension of this derivative of β-cyclodextrin (β-CD) at a pH between 4 and 10 and a temperature of 298.15 K and its solubilities at temperatures between (273.15 and 353.15) K were investigated. The results of these studies show that the minimum value, 40.5 mN·m −1, for the surface tension of allyl-β-CD appears in an alkaline environment, that the critical micelle concentration (cmc) is 9·10 −3 mol·L −1, and that the solubility of allyl-β-CD increases by at least 50 % compared with that of β-CD. Finally, according to the analysis with ideal solution model, the optimal solubility model is obtained.

Key concepts: Solubility, Surface tension, Cyclodextrin, Micelle, Critical micelle concentration, Chemistry, Derivative (finance), Thermodynamics

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