Abstract
Thermodynamic properties of hyperbranched polymer, Boltorn BW3000, were investigated by inverse chromatography with 42 different solvents: alkanes (C5−C10), cycloalkanes (C5−C8), alkenes (C5−C8), alkynes (C5−C8), aromatic hydrocarbons (benzene, toluene, ethylbenzene, o-, m-, p-xylene, thiophene), alcohols (C1−C5) and water, ethers (diethyl-, di-n-propyl-, di-n-butylether, methyl-tert-butylether, MTBE, tetrahydrofuran, THF), and ketones (propanone, 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, cyclopentanone) at the temperatures ranging from (308.15 to 348.15) K. The density and thermophysical properties of polymer were described. The specific retention volume (Vg), the mass-fraction activity coefficient at infinite dilution (Ω13∞), the Flory−Huggins parameter (χ13∞), the molar enthalpy of solute’s absorption in the polymer (ΔsH), the partial molar excess enthalpy at infinite dilution (ΔH1E,∞), the partial molar Gibbs excess energy at infinite dilution (ΔG1E,∞), and the solubility parameter of the poly...
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