Group Contribution Method for Group Contribution Method for Estimation of Vapor Liquid Equilibria in Polymer Solutions
- Authors
- Oh, Suk Yung; Bae, Young Chan
- Issue Date
- Nov-2009
- Publisher
- POLYMER SOC KOREA
- Keywords
- modified double lattice model; group contribution method; vapor liquid equilibria; solvent activity
- Citation
- MACROMOLECULAR RESEARCH, v.17, no.11, pp.829 - 841
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MACROMOLECULAR RESEARCH
- Volume
- 17
- Number
- 11
- Start Page
- 829
- End Page
- 841
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175920
- DOI
- 10.1007/BF03218623
- ISSN
- 1598-5032
- Abstract
- This study introduces a specified group-contribution method for predicting the phase equilibria in polymer solutions. The method is based on a modified double lattice model developed previously. The proposed model includes a combinatorial energy contribution that is responsible for the revised Flory-Huggins entropy of mixing, the van der Waals energy contribution from dispersion, a polar force and specific energy contribution. Using the group-interaction parameters obtained from data reduction, the solvent activities for a large variety of mixtures of polymers and solvents over a wide range of temperatures can be predicted with good accuracy. This method is simple but provides improved predictions compared to those of the other group contribution methods.
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