Solubility Profiles of Poly(ethylene glycol)/Solvent Systems. II. Comparison of Thermodynamic Parameters from Viscosity Measurements

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dc.contributor.authorDinc, Cemile Ozdemir
dc.contributor.authorKibarer, Guenay
dc.contributor.authorGuner, Ali
dc.date.accessioned2024-09-18T21:00:35Z
dc.date.available2024-09-18T21:00:35Z
dc.date.issued2010
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractSolution thermodynamics of PEG samples in aqueous and nonaqueous (methanol, chloroform, tetrahydrofuran, and dimethylsulfoxide) solutions have been investigated by viscometric studies at 25, 30, 35, and 40 degrees C. The hydrodynamic expansion factor, a(h), and the unperturbed root mean square end-to-end distance, < r(2)>(1/2)(theta), found for the system indicated that the polymer coils contract as the temperature is raised. The long-range interaction parameter, B, was also evaluated and a significant decrease with increasing temperature was observed. The theta temperatures, theta, obtained from the temperature dependence of (1/2 - chi) and the second virial coefficient, A(2), are quite good in agreement with the calculated values evaluated via extrapolation and interpolation methods. The thermodynamic interaction parameter, x, was evaluated through the sum of the individual values of enthalpy and entropy dilution parameters for PEG samples. The restrictions applying to the establishment of concentration regimes, short-range, and long-range interactions are discussed. A parallelism is found between solubility profiles obtained by solution viscometry and solubility parameter approaches for PEG/solvent systems. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 1100-1119, 2010en_US
dc.identifier.doi10.1002/app.31829
dc.identifier.endpage1119en_US
dc.identifier.issn0021-8995
dc.identifier.issn1097-4628
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-77951245382en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1100en_US
dc.identifier.urihttps://doi.org/10.1002/app.31829
dc.identifier.urihttps://hdl.handle.net/20.500.12483/12772
dc.identifier.volume117en_US
dc.identifier.wosWOS:000278162600056en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofJournal of Applied Polymer Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectviscosityen_US
dc.subjectsolution propertiesen_US
dc.subjectthermodynamicsen_US
dc.titleSolubility Profiles of Poly(ethylene glycol)/Solvent Systems. II. Comparison of Thermodynamic Parameters from Viscosity Measurementsen_US
dc.typeArticleen_US

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