Abstract
| Original language | English |
|---|---|
| Journal | Polymer Engineering and Science |
| Volume | 36 |
| Issue number | 2 |
| Pages (from-to) | 254-261 |
| ISSN | 0032-3888 |
| DOIs | |
| Publication status | Published - 1996 |
Cite this
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Henry constants in polymer solutions with the van der Waals equation of state. / Bithas, Sotiris; Kalospiros, Nikolaos; Kontogeorgis, Georgios; Dimitrios, Tassios.
In: Polymer Engineering and Science, Vol. 36, No. 2, 1996, p. 254-261.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Henry constants in polymer solutions with the van der Waals equation of state
AU - Bithas, Sotiris
AU - Kalospiros, Nikolaos
AU - Kontogeorgis, Georgios
AU - Dimitrios, Tassios
PY - 1996
Y1 - 1996
N2 - The simple der Waals equation of state, as extended to polymer systems, is applied to the correlation and prediction of Henry constants in polymer solutions comprising five polymers and many nonpolar and polar solvents, including supercritical gases. The correlation achieved with one adjustable parameter is satisfactory, with typical errors within the experimental uncertainty and comparable to those with the more complex Perturbed Hard Chain Theory-based equations of state with the same number of adjustable parameters. A predictive scheme for calculating Henry constants is also presented, which is a corresponding-states correlation for a dimensionless Henry constant defined based on the van der Waals equation of state. Satisfactory results-often close to the ones from the one-parameter correlation-are obtained for all systems investigated in this work. Compared with literature models that have been applied to the prediction of Henry constants In polymers, this scheme is simpler and applicable to supercritical gas-containing systems.
AB - The simple der Waals equation of state, as extended to polymer systems, is applied to the correlation and prediction of Henry constants in polymer solutions comprising five polymers and many nonpolar and polar solvents, including supercritical gases. The correlation achieved with one adjustable parameter is satisfactory, with typical errors within the experimental uncertainty and comparable to those with the more complex Perturbed Hard Chain Theory-based equations of state with the same number of adjustable parameters. A predictive scheme for calculating Henry constants is also presented, which is a corresponding-states correlation for a dimensionless Henry constant defined based on the van der Waals equation of state. Satisfactory results-often close to the ones from the one-parameter correlation-are obtained for all systems investigated in this work. Compared with literature models that have been applied to the prediction of Henry constants In polymers, this scheme is simpler and applicable to supercritical gas-containing systems.
U2 - 10.1002/pen.10410
DO - 10.1002/pen.10410
M3 - Journal article
VL - 36
SP - 254
EP - 261
JO - Polymer Engineering and Science
JF - Polymer Engineering and Science
SN - 0032-3888
IS - 2
ER -