Abstract
The liquid adsorption behavior and surface properties of α-, β-, and γ-cyclodextrin, CD, were studied and compared by FTIR and capillary rise method. These three CDs all showed an intense peak at 1155cm-1 due to the C-O structure stretching and the peak height was found to reduce with the sugar ring molecules of CD increase. All these three CDs adsorbed the non-polar liquids greatly as compared with the polar liquid due to their total surface free energies dominated by the Lifshitz-van der Waals interactions component. The increase of the sugar ring molecules has been found to increase the Lewis acid-base property of CDs.
Original language | English |
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Pages (from-to) | 69-73 |
Number of pages | 5 |
Journal | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
Volume | 411 |
DOIs | |
State | Published - Oct 5 2012 |
Externally published | Yes |
Keywords
- Cyclodextrin
- Liquid adsorption
- Surface properties
- α-, β-, γ-Structure