Abstract
Abstract The interaction parameter χt∝ and the effective exchange energy parameter X 12 at infinite dilution of cyclohexane, benzene and chlorobenzene with poly(dimethyl siloxane) were determined around room temperature, according to relations given in the Flory formulation of the equation-of-state theory using the inverse gas chromatography technique. Then, the exchange enthalpy X12 and entropy Q12 parameters were determined by using a relation for the enthalpy interaction parameter χh of the equation-of-state theory, which is arranged for the inverse gas chromatography conditions. The values of the above-mentioned parameters are comparable with the values obtained earlier with other methods. The X12 and Q12 parameters of cyclohexane increase slightly with temperature, while those of benzene and chlorobenzene are almost independent of temperature.
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