Abstract
A new molecular thermodynamic model is developed of the gas permeability in polymer membranes on the basis of configurational entropy and Flory-Huggins theory to predict permeability dependence on the concentration of penetrant. Three kinds of configurational entropy are taken into account by this model; that is, the disorientation entropy of polymer, the mixing entropy, and specific interaction entropy of polymer/gas. The validity of the mathematical model is examined against experimental gas permeability for polymer membranes. Agreement between experimental and predicted permeability is satisfactory.
| Original language | English |
|---|---|
| Pages (from-to) | 661-665 |
| Number of pages | 5 |
| Journal | Journal of Polymer Science, Part B: Polymer Physics |
| Volume | 45 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2007 Mar 15 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Materials Chemistry