Through the application of capillary rise method research about the liquid adsorption behavior of a, �, ? cyclodextrin, CD, in four probe solvents, we obtained its properties such as adsorption kinetics, the adsorption contact angle, and surface free energy which including the Lewis acid-base interactions. A comparison of these three CDs found that the a- and �-CD can adsorb greater polar liquid, and the ?-CD a-CD can adsorb greater non-polar liquids. The �-CD has the greatest surface free energy than that of others while all these CDs are dominated by the Lifshitz-van der Waals interaction component because this value to be up to the total surface free energy at least 77%. Of these CDs, the ?-CD has the greatest Lewis base and polarity as compared with others.

Comparison of the liquid adsorption behavior and surface properties of α-, β- and γ-cyclodextrins by capillary rise method

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.