Abstract
With the use of a modified gas geiger counter and tritiated water vapor, it has been possible to study the adsorption of water vapor on a number of adsorbents. The possible use of a variety of radioisotope-labeled adsorbates gives the technique a wide application in adsorbate-adsorbent interaction studies. The graphical method of analysis has made possible determination of the amounts of adsorbent associated with each exchange process between adsorbate molecules in the vapor phase and adsorbate on the adsorbent surfaces. These data, when correlated with the total amount of water vapor adsorbed under the same experimental conditions, enabled models to be postulated for the adsorption of water vapor. The hydroxyl-rich surface of a polyvinyl alcohol polymer was studied by this technique.
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