Abstract
A corresponding states treatment is described for the prediction of excess static surface tensions γ st E of binary liquid mixtures of chain molecules. Good agreement is obtained with the experimental results for systems of the type n-alkane + n-alkane and n-alkane + linear dimethylsiloxane, with residual discrepancies mainly attributable to inadequacies in the models used to estimate γ st E - γ dyn E , the difference between the static and dynamic surface tensions. For the n-alkane + dimethylsiloxane mixtures, the predicted chain length dependence of γ dyn E is compared with that reported previously for their excess volumes of mixing.
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