Liquid-liquid phase equilibrium in polymer-solvent systems: Correlation and prediction of the polymer molecular weight and the pressure effect

Pappa, GD; Voutsas, EC; Tassios, DP

dc.contributor.author	Pappa, GD	en
dc.contributor.author	Voutsas, EC	en
dc.contributor.author	Tassios, DP	en
dc.date.accessioned	2014-03-01T01:16:40Z
dc.date.available	2014-03-01T01:16:40Z
dc.date.issued	2001	en
dc.identifier.issn	0888-5885	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14165
dc.subject	Free Volume	en
dc.subject	Phase Equilibrium	en
dc.subject	Phase Separation	en
dc.subject	Polymer Solution	en
dc.subject	Pressure Effect	en
dc.subject	Lower Critical Solution Temperature	en
dc.subject	Molecular Weight	en
dc.subject	Upper Critical Solution Temperature	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Partial miscibility	en
dc.subject.other	Flow interactions	en
dc.subject.other	Molecular weight	en
dc.subject.other	Phase separation	en
dc.subject.other	Polymers	en
dc.subject.other	Pressure effects	en
dc.subject.other	Solubility	en
dc.subject.other	Solutions	en
dc.subject.other	Solvents	en
dc.subject.other	Phase equilibria	en
dc.subject.other	polymer	en
dc.subject.other	solvent	en
dc.subject.other	liquid-liquid separation	en
dc.subject.other	miscibility	en
dc.subject.other	molecular weight	en
dc.subject.other	polymer	en
dc.subject.other	pressure analysis	en
dc.subject.other	solvent	en
dc.subject.other	article	en
dc.subject.other	chemical analysis	en
dc.subject.other	correlation function	en
dc.subject.other	liquid	en
dc.subject.other	miscibility	en
dc.subject.other	model	en
dc.subject.other	molecular interaction	en
dc.subject.other	molecular weight	en
dc.subject.other	physical phase	en
dc.subject.other	pressure	en
dc.subject.other	temperature	en
dc.title	Liquid-liquid phase equilibrium in polymer-solvent systems: Correlation and prediction of the polymer molecular weight and the pressure effect	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/ie0103658	en
heal.identifier.secondary	http://dx.doi.org/10.1021/ie0103658	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	A G(E) model is used for the correlation and prediction of partial miscibility in polymer solutions that exhibit both upper critical solution temperature and lower critical solution temperature as well as hourglass-type phase separation in some cases. The model employs a combinatorial/free-volume term and the residual term of UNIQUAC, for which interaction parameters between the solvent molecule and the repeating unit (segment) of the polymer are determined. The obtained parameters are then used to predict the effect of the polymer molecular weight on the solvent/polymer partial miscibility. The model is also successfully applied in the prediction of the pressure effect on mutual solubility by incorporating it through the free volumes of the components. Finally the prediction of excess properties using the proposed model is investigated.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Industrial and Engineering Chemistry Research	en
dc.identifier.doi	10.1021/ie0103658	en
dc.identifier.isi	ISI:000171526300021	en
dc.identifier.volume	40	en
dc.identifier.issue	21	en
dc.identifier.spage	4654	en
dc.identifier.epage	4663	en