Studies and comparison of the liquid adsorption and surface properties of α-, β- and γ-cyclodextrins by FTIR and capillary rise method

Lv Fei Chen, Qing Shen, Ji Ping Shen, Dong Ting Shi, Ting Chen, Hao Ran Yu

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

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 languageEnglish
Pages (from-to)69-73
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume411
DOIs
StatePublished - Oct 5 2012
Externally publishedYes

Keywords

  • Cyclodextrin
  • Liquid adsorption
  • Surface properties
  • α-, β-, γ-Structure

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