6533b86ffe1ef96bd12ce8ba

RESEARCH PRODUCT

Adsorption and Dehydration of Water Molecules from α, β and γ Cyclodextrins — A Study by TGA Analysis and Gravimetry

Alfred A. Christy

subject

Thermogravimetric analysisHydrogenChemistryHydrogen bondGeneral Engineeringchemistry.chemical_elementmedicine.diseaseAdsorptionDesorptionPolymer chemistrymedicineMoleculeOrganic chemistryGravimetric analysisDehydration

description

The adsorption and desorption of water molecules from α, β and γ-cyclodextrins were studied by gravimetric and thermogravimetric analysis. Cyclodextrins like all the other carbohydrates have tendency to adsorb water molecules. However, their cyclic nature tends to affect the adsorption patterns. The cyclic nature of the cyclodextrins facilitates the formation of hydrogen bondings between OH groups of the neighbouring glucose units. The C2(1)-OH forms hydrogen bonding with C3(2)-OH. The extent of the hydrogen bond formation and strength of the hydrogen bond affect the way the adsorption and dehydration of water molecules from cyclodextrins take place.

https://doi.org/10.4028/www.scientific.net/amr.1120-1121.886