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Study of solubility and swelling ratio in polymer‐CO 2 systems using the PC‐SAFT equation of state
Author(s) -
Gong Kai,
Panuganti Sai R.,
Chapman Walter G.
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44804
Subject(s) - solubility , swelling , equation of state , polypropylene , polymer , materials science , thermodynamics , hildebrand solubility parameter , polymer chemistry , polymer science , chemistry , physics , composite material
We use the PC‐SAFT equation of state to model the solubility of CO 2 in various homopolymers. We also model the swelling ratio of the PP (polypropylene)‐CO 2 mixture using PC‐SAFT and then compare the results with Sanchez‐Lacombe (S‐L) and Simha‐Somcynsky (S‐S) equations. The results show that PC‐SAFT can describe the solubility of CO 2 in polymers very well. We compare two sets of parameters in the PC‐SAFT equation, Gross et al .'s and Chen et al .'s. As for the swelling ratio, PC‐SAFT using Chen et al . parameters is better than S‐L equation, which is commonly used by early researchers in studying the solubility of CO 2 in polymers. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44804.