Experimental Support of “Dual Sorption” in Glassy Polymers
To explain equilibrium sorption isotherms for some gases in glassy polymers, Michaels, Vieth et.al. (1,2,3) postulated that sorption was occurring by two distinct modes. This postulate has since become known as the “Dual Sorption Model”. Vieth et.al. (2,3) achieved a mathematical description of transient sorption behavior by further postulating that one of the sorption modes immobilizes the gas molecules while the other gives rise to the driving force for transport.
KeywordsSorption Isotherm Glassy Polymer Pressure Decay Hole Fill Pressure Measuring System
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