Sodium alginate/poly(vinyl alcohol) alloy membranes for the pervaporation, vapour permeation and vapour permeation with temperature difference separation of dimethylformamide/water mixtures: A comparative study

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dc.contributor.authorKahya, Suat
dc.contributor.authorSolak Kondolot, Ebru
dc.contributor.authorŞanlı, Oya
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:26:46Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:26:46Z
dc.date.issued2010
dc.departmentSağlık Bilimleri Fakültesi
dc.description.abstractIn this study, sodium alginate (NaAlg)/poly(vinyl alcohol) (PVA) membranes were prepared for the separation of dimethylformamide (DMF)/water mixtures. The two polymer components were independently crosslinked chemically with glutaraldehyde. The crosslinked membranes were characterized by fourier transform infrared spectrometry (FTIR), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). The permeation and separation characteristics of water/DMF mixtures were investigated using the vacuum processes pervaporation (PV), vapour permeation (VP) and vapour permeation with temperature difference (TDVP) methods. The effects of NaAlg/PVA ratio, membrane thickness, operating temperature and temperature of the membrane surroundings, feed concentration on the transmembrane permeation rate and separation factor were investigated. Optimum NaAlg/PVA ratio was determined as 80/20 (w/w) for the separation. The permeation rate in VP was lower than those in PV, whereas the separation factors were higher. The activation energies of permeation in PV and VP were calculated to be 5.070 and 2.229 kcal/mol, respectively, for a 20 wt% of DMF solution.
dc.description.sponsorshipGazi University
dc.description.sponsorshipWe are grateful to Gazi University Research Fund for the support of this study.
dc.identifier.doi10.1016/j.vacuum.2010.01.033
dc.identifier.endpage1102en_US
dc.identifier.issn0042-207X
dc.identifier.issue9en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage1092en_US
dc.identifier.urihttps://doi.org/10.1016/j.vacuum.2010.01.033
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5704
dc.identifier.volume84en_US
dc.identifier.wosWOS:000277356200005
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPERGAMON-ELSEVIER SCIENCE
dc.relation.ispartofVACUUM
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectSodium Alginate
dc.subjectPoly(vinyl alcohol)
dc.subjectPervaporation
dc.subjectVapour Permeation
dc.subjectDimethylformamide
dc.titleSodium alginate/poly(vinyl alcohol) alloy membranes for the pervaporation, vapour permeation and vapour permeation with temperature difference separation of dimethylformamide/water mixtures: A comparative study
dc.typeArticle

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