Chromatographic Adsorption Study of Several Molecular Probes on Porous Polymer Adsorbents
- 1 August 1973
- journal article
- Published by Oxford University Press (OUP) in Journal of Chromatographic Science
- Vol. 11 (8) , 411-417
- https://doi.org/10.1093/chromsci/11.8.411
Abstract
The adsorption properties of Chromosorb 101, Chromosorb 102, Porapak P and Porapak Q were investigated by determining differential enthalpies, entropies, and free energies of adsorption for a selected group of organic molecules over a temperature range below the apparent thermal softening point of the amorphous polymer beads. The physical characteristics of each adsorbent were evaluated using Differential Scanning Calorimetry (DSC). The effect of increased divinylbenezene content on glass transition temperatures for polystyrene beads was determined. This relationship was used as a basis for comparison of thermograms for the commercial polymer beads used in the chromatographic study. Results indicated that, among the adsorbates considered, adsorption is the predominant interaction mechanism for hexane and hexene.Keywords
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