| Titre : | Application of a new lattice-fluid equation of state based on chemical-association theory for polymer systems (2009) |
| Auteurs : | Xiaochun Xu, Auteur ; Changjun Peng, Auteur ; Guiping Cao, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 16, Août 2009) |
| Article en page(s) : | pp. 7828–7837 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Lattice-fluid equation of state Fluid systems Ionic liquid |
| Résumé : | In our previous work, a new lattice-fluid equation of state (LF-EoS) was developed and successfully applied to normal fluid systems and ionic liquid systems. In this work, this LF-EoS is further extended to describe thermodynamic properties of polymer systems. First, the model parameters for polymers were determined by fitting experimental pVT data of polymers over a wide temperature and pressure range. Then, the LF-EoS was applied for calculating vapor−liquid equilibrium (VLE) of polymer−solvent systems using one adjustable binary parameter κ12. The solubility of gas in polymer can be calculated up to a high pressure. Moreover, a new parameter Cr was introduced to describe the effect of composition of mixtures on chain length parameter r, and several typical liquid−liquid equilibrium behaviors of polymer solutions can be successfully reproduced. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie900676n |
