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APPLICATION OF THE VAN-DER-WAALS-EQUATION OF STATE TO POLYMERS .1. CORRELATION

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dc.contributor.author KONTOGEORGIS, GM en
dc.contributor.author HARISMIADIS, VI en
dc.contributor.author FREDENSLUND, A en
dc.contributor.author TASSIOS, DP en
dc.date.accessioned 2014-03-01T01:42:44Z
dc.date.available 2014-03-01T01:42:44Z
dc.date.issued 1994 en
dc.identifier.issn 0378-3812 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/23927
dc.subject THEORY en
dc.subject APPLICATION en
dc.subject EQUATION OF STATE en
dc.subject CUBIC en
dc.subject ACTIVITY COEFFICIENT en
dc.subject VAPOR-LIQUID EQUILIBRIA en
dc.subject POLYMER SOLUTIONS en
dc.subject.classification Thermodynamics en
dc.subject.classification Chemistry, Physical en
dc.subject.classification Engineering, Chemical en
dc.subject.other VAPOR-LIQUID-EQUILIBRIA en
dc.subject.other 2ND VIRIAL-COEFFICIENTS en
dc.subject.other SOLVENT ACTIVITIES en
dc.subject.other PHASE-EQUILIBRIA en
dc.subject.other MOLTEN POLYMERS en
dc.subject.other CUBIC EQUATION en
dc.subject.other PREDICTION en
dc.subject.other SOLUBILITIES en
dc.subject.other MIXTURES en
dc.subject.other DENSITIES en
dc.title APPLICATION OF THE VAN-DER-WAALS-EQUATION OF STATE TO POLYMERS .1. CORRELATION en
heal.type journalArticle en
heal.language English en
heal.publicationDate 1994 en
heal.abstract A reliable methodology for evaluating the energy and co-volume parameters of cubic equations of state for polymers is proposed. Only two low-pressure volumetric data points are used. The procedure is applied to the van der Waals equation of state and bubble-point pressure calculations are performed for a number of polymer solutions. The usual combining and mixing rules are used. It is shown that the van der Waals equation can correlate the equilibrium pressures of polymer solutions using one binary interaction parameter. The accuracy of the correlation is very good; it is comparable to or better than that achieved using the Flory-Huggins model. It is also shown that the necessary binary interaction parameters for the van der Waals equation of state can be estimated using a simple scheme based on the Berthelot combining rule. It is, thus, demonstrated that the van der Waals equation of state can be a simple and successful tool for the description of the vapor-liquid equilibria in polymer solutions. en
heal.publisher ELSEVIER SCIENCE BV en
heal.journalName FLUID PHASE EQUILIBRIA en
dc.identifier.isi ISI:A1994NP76100005 en
dc.identifier.volume 96 en
dc.identifier.spage 65 en
dc.identifier.epage 92 en


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