Abstract

Diffusion and sorption of four long-chain hydrocarbons, namely, 2,2,4-trimethylpentane, dodecane, tetradecane, and hexadecane, through four commercial polymer membranes has been studied in the temperature interval of 25-60°C by conventional weight gain experiments. The diffusion results have been analyzed in terms of the simple Fickian model. The slightly anomalous transport behavior of the polymer-solvent systems has been attributed to a slow leaching out of the indigenous elastomer compounds and/or additives during solvent immersion

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