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Predictive construction of phase diagram of ternary solutions containing polymer/solvent/nonsolvent using modified Flory-Huggins model

Sadeghi, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.molliq.2018.05.015
  3. Publisher: Elsevier B.V , 2018
  4. Abstract:
  5. The Flory-Huggins (FH) model has been one of the most used models in theoretical calculations which has been proved to be sensitive to values assigned as interaction parameters. In this work, a predictive equation is implemented to implicitly couple the concept of compressible regular solution theory of Ruzette and Mayes into the original FH model to obtain a new concertation-dependent interaction parameter equation. Then, the modified model (m-FH) is applied for construction of phase diagram of ternary solutions containing polymer/solvent/nonsolvent where experimental data for ternary systems were collected from the literature. In order to compare and analyze the model performance, the individual absolute relative deviation (IARD (%)) was used. The m-FH model revealed acceptable accuracy in calculations without prior need for correlation to experimental data. © 2018 Elsevier B.V
  6. Keywords:
  7. Compressible regular solutions ; Flory-Huggins model ; Interaction parameter ; Polymeric solutions ; Membranes ; Phase diagrams ; Ruthenium compounds ; Compare and analyze ; Interaction parameters ; Polymeric solution ; Predictive equations ; Regular solution ; Regular solution theory ; Theoretical calculations ; Polymers
  8. Source: Journal of Molecular Liquids ; Volume 263 , 2018 , Pages 282-287 ; 01677322 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S016773221831674X