| 초록 |
specified group-contribution method is proposed to estimate vapor-liquid equilibria (VLE) of ordinary and associated binary polymer solutions. In this group contribution method, the van der Waals (vdW) energy parameters for dispersion and polar forces and the hydrogen bonding (h-b) energy parameters for associated systems are tabulated separately. For specificity, two cases are respectively taken into accounts for associated systems. The one contains that the interactions between segments of polymer and solvents are similar to those between solvent segments. The other is the case having the differences between them. For the latter case, the temperature dependence of h-b parameter is introduced. Our proposed model shows good agreements with experiments in solvent activity estimations for ordinary and associated binary polymer solution.
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