| Abstract
| - The solubility coefficients of a wide range of gases in polyethylene were calculated with arecently developed integral equation theory of gas solubility. Standard Lennard-Jones potentialinteractions were used for united atom models of both gas molecules and polyethylene, CH2, sites. Thecross interactions were assumed to be given by the standard Bertholet relationships, and care was takento stay within the Henry's law limit. The predictions of the theory for the solubility of low criticaltemperature gases in polyethylene were compared to the experimental values. The agreement wasexcellent, and for the cases considered, there was no justification for introducing non-Bertholet crossinteractions. On the other hand, the results were found to be sensitive to the details of the CH2−CH2interaction.
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