Abstract
Inverse gas chromatography has been used to characterize the interaction of polyether-polyurethane with 17 solvents of various polarities at 100–150°C. The specific retention volume ( V 0 g ) measured for each probe was used to calculate various thermodynamic parameters and properties at infinite dilution, viz. χ, χ ∗, X 12 , ΔH s rm1, ΔH ∞ 1 , ΔG ∞ 1 and TΔS ∞ 1 . The dependencies on temperature and nature of the solvent are discussed. Also we have calculated the solubility parameter of the polymer using the method of Guillet and Dipaola-Baranyi at the above temperatures and also at 25°C.
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