Abstract
The relative swelling power, C n , and adsorptivity, α n , with respect to poly(styrene-co-divinylbenzene) were established for the first 12 liquids in the homologous series Cl(CH 2 ) n H. These results confirm that the molecular nature of the adsorption process is given better by α n than by C n , which is the product of α n and the molar volume of the sorbed liquid. They also confirm that α n is determined by three parameters: the inherent dynamic packing efficiency, α 0 , when steric hindrance owing to (CH n ) n H is not a factor; the incremental decrease in packing efficiency, A, per added methylene group owing to the corresponding increase in molecular bulkiness; and the added steric hindrance factor to adsorption, B, caused by self-association in such molecules when n>6
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