| Titre : | Modeling sorption kinetics of carbon dioxide in glassy polymeric films using the nonequilibrium thermodynamics approach (2009) |
| Auteurs : | Vito Carlà, Auteur ; Yazan Hussain, Auteur ; Christine Grant, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 8, Avril 2009) |
| Article en page(s) : | pp. 3844–3854 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Glassy polymers Nonequilibrium thermodynamics One-dimensional transport model Carbon dioxide Sorption− ; diffusion− ; relaxation |
| Résumé : | The nonequilibrium thermodynamics of glassy polymers (NET-GP) approach ( Macromolecules 2005, 38, 10299.) has been applied to the development of a one-dimensional transport model aimed at describing the kinetics of sorption and dilation of polymeric films in supercritical carbon dioxide. The NET-GP model was combined with a simple rheological constitutive equation to build a sorption−diffusion−relaxation model able to describe mass uptake and swelling kinetics of polymeric films in contact with carbon dioxide over a wide range of pressures and temperatures. The model calculations are compared with data on mass sorption kinetics for CO2 in supported glassy poly(methyl methacrylate) (PMMA) films, measured in a high-pressure quartz crystal microbalance (QCM). |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie800655w |
