Henry constants in polymer solutions with the Van der Waals equation of state

Bithas, SG; Kalospiros, NS; Kontogeorgis, GM; Tassios, D

dc.contributor.author	Bithas, SG	en
dc.contributor.author	Kalospiros, NS	en
dc.contributor.author	Kontogeorgis, GM	en
dc.contributor.author	Tassios, D	en
dc.date.accessioned	2014-03-01T01:11:59Z
dc.date.available	2014-03-01T01:11:59Z
dc.date.issued	1996	en
dc.identifier.issn	0032-3888	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11903
dc.subject	Equation of State	en
dc.subject	Polymer Solution	en
dc.subject	van der waals	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Calculations	en
dc.subject.other	Correlation methods	en
dc.subject.other	Equations of state	en
dc.subject.other	Errors	en
dc.subject.other	Mathematical models	en
dc.subject.other	Perturbation techniques	en
dc.subject.other	Solutions	en
dc.subject.other	Solvents	en
dc.subject.other	Van der Waals forces	en
dc.subject.other	Henry constants	en
dc.subject.other	Perturbed hard chain theory	en
dc.subject.other	Supercritical gases	en
dc.subject.other	Polymers	en
dc.title	Henry constants in polymer solutions with the Van der Waals equation of state	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/pen.10410	en
heal.identifier.secondary	http://dx.doi.org/10.1002/pen.10410	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	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.	en
heal.publisher	SOC PLASTICS ENG INC	en
heal.journalName	Polymer Engineering and Science	en
dc.identifier.doi	10.1002/pen.10410	en
dc.identifier.isi	ISI:A1996TU08100014	en
dc.identifier.volume	36	en
dc.identifier.issue	2	en
dc.identifier.spage	254	en
dc.identifier.epage	261	en