Modeling of Polymer Phase Equilibria Using Equations of State

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1、AdvPolymSci(2011)238:389418DOI:10.1007/12_2010_94#Springer-VerlagBerlinHeidelberg2010Publishedonline:31July2010ModelingofPolymerPhaseEquilibriaUsingEquationsofStateGabrieleSadowskiAbstractThemostpromisingapproachforthecalculationofpolymerphaseequilibriatodayistheuseofequationsofstatethat

2、arebasedonperturbationtheories.Thesetheoriesconsideranappropriatereferencesystemtodescribetherepulsiveinteractionsofthemolecules,whereasvanderWaalsattractionsortheformationofhydrogenbondsareconsideredasperturbationsofthatreferencesystem.Moreover,thechain-likestructureofpolymermoleculesis

3、explicitlytakenintoaccount.Thisworkpresentsthebasicideasofthesekindsofmodels.Itwillbeshownthatthey(inparticularSAFTandPC-SAFT)areabletodescribeandeventopredictthephasebehaviorofpolymersystemsasfunctionsofpressure,temperature,polymerconcentration,polymermolecularweight,andpolydispersityas

4、wellasincaseofcopolymerscopolymercomposition.KeywordsCopolymers
Equationofstate
Modeling
Polymers
Solubility
Sorption
ThermodynamicsContents1Introduction...............................................................................3922EquationsofState....................................

5、.....................................3923EstimationofModelParameters..........................................................3994ModelingofHomopolymerSystems......................................................4015ExtensiontoCopolymers...................................................

6、..............4056AccountingfortheInfluenceofPolydispersity...........................................4087Summary..................................................................................414References.................................................................................

7、...416G.SadowskiTUDortmund,DepartmentofBiochemicalandChemicalEngineering,LaboratoryforThermo-dynamics,Emil-Figge-Strasse70,44227Dortmund,Germanye-mail:g.sadowski@bci.tu-dortmund.de390G.SadowskiSymbolsAHelmholtzenergyaParameterofthevanderWaalsequationBabFractionofbondsbetw