Abstract
Enthalpy of dilution for the polystyrene+cyclohexanone system was measured at 298K, using a dilution calorimeter, and the interaction energy parameter X12, developed by Flory, was estimated. It was found from the results that, in comparison with the X12 value of the polystyrene+cyclohexane system, that of the present system was more negative in the sequence: cyclohexanone>methyl ethyl ketone, measured previously. The difference between hydrocarbon and carbonyl compounds was explained in terms of dipolar effects. Also, the dependence of X12 on the molecular weight of polymer was briefly discussed in terms of “the correlation of molecular orientation” described by Patterson.
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Fujihara, I., Tamura, K., Murakami, S. et al. Enthalpies of Dilution of Polymer Solutions. Polym J 11, 153–156 (1979). https://doi.org/10.1295/polymj.11.153
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DOI: https://doi.org/10.1295/polymj.11.153