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Vapor‐Liquid Equilibria of Polymer Solutions by Group‐Contribution Method: Applicability of Modified Double Lattice Model
Author(s) -
Huh Ji Yeon,
Bae Young Chan
Publication year - 2001
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(20010501)202:8<1466::aid-macp1466>3.0.co;2-o
Subject(s) - van der waals force , thermodynamics , polymer , group contribution method , lattice (music) , solvent , lattice energy , chemistry , interaction energy , entropy (arrow of time) , molecule , physics , organic chemistry , phase equilibrium , crystal structure , acoustics , phase (matter)
A new group‐contribution model based on the modified double‐lattice theory is developed and applied to describe vapor‐liquid equilibria (VLE) of polymer solutions. The proposed model includes the combinatorial energy contribution that is responsible for the revised Flory‐Huggins entropy of mixing, the van der Waals energy contribution from dispersion, polar force and the specific energy contribution from hydrogen bonding. Quantitative description according to the proposed model is in good agreement with experimentally observed solvent activities of polymer solutions.