Application of the sCPA equation of state for polymer solutions

Kontogeorgis, GM; Yakoumis, IV; Vlamos, PM

dc.contributor.author	Kontogeorgis, GM	en
dc.contributor.author	Yakoumis, IV	en
dc.contributor.author	Vlamos, PM	en
dc.date.accessioned	2014-03-01T01:49:46Z
dc.date.available	2014-03-01T01:49:46Z
dc.date.issued	2000	en
dc.identifier.issn	1089-3156	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25913
dc.subject	hydrogen bonding	en
dc.subject	water-soluble polymers	en
dc.subject	polymer solutions and blends	en
dc.subject	phase equilibria/thermodynamics	en
dc.subject.classification	Polymer Science	en
dc.subject.other	VAPOR-LIQUID-EQUILIBRIA	en
dc.subject.other	DER-WAALS-EQUATION	en
dc.subject.other	CRITICAL SOLUTION TEMPERATURES	en
dc.subject.other	ACTIVITY-COEFFICIENT MODELS	en
dc.subject.other	PHASE-EQUILIBRIA	en
dc.subject.other	ASSOCIATING MOLECULES	en
dc.subject.other	SOLVENT ACTIVITIES	en
dc.subject.other	CPA EQUATION	en
dc.subject.other	PREDICTION	en
dc.subject.other	SYSTEMS	en
dc.title	Application of the sCPA equation of state for polymer solutions	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	Specific interactions, for example hydrogen bonding, dominate in numerous industrially important polymeric systems, both polymer solutions and blends. Typical cases are water-soluble polymers including biopolymers of special interest to biotechnology (e.g. the system polyetfiyleneglycol/dextran/water). Furthermore, most polymer blends are non-compatible and the requirement for compatible polymer pairs is often the presence of hydrogen-bonding interactions (e.g. polyvinylchloride/chlorinated polyethylene). In this work we give at first a short, comparative evaluation of existing thermodynamic models suitable for polymeric systems that take into account, explicitly, specific interactions Like HE. The range of application of the models in terms of phase equilibria and their specific characteristics (accuracy of calculation, degree of complexity) are discussed. Finally, vapor-liquid equilibria (VLE) calculations for a number of polymer + solvent systems (including five different polymers) with a novel and very promising model are presented. This model is in the form of an equation of state that is (in its general formulation) non-cubic with respect to volume and has separate terms for physical and chemical interactions. The model has recently been proposed and has already been successfully applied to (alcohol/water/hydrocarbons). This is the first time that it is extended to polymer solutions. (C) 2000 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	COMPUTATIONAL AND THEORETICAL POLYMER SCIENCE	en
dc.identifier.isi	ISI:000088819700005	en
dc.identifier.volume	10	en
dc.identifier.issue	6	en
dc.identifier.spage	501	en
dc.identifier.epage	506	en