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dc.contributor.author Méndez, Mercedes Liliana
dc.contributor.author Romero, Analía Irma
dc.contributor.author Rajal, Verónica Beatriz
dc.contributor.author Castro Vidaurre, Elza Fani
dc.contributor.author Calvo, Jose Ignacio
dc.contributor.author Palacio, Laura
dc.contributor.author Hernandez, Antonio Maria
dc.date.available 2016-03-10T20:26:28Z
dc.date.issued 2013-09
dc.identifier.citation Méndez, Mercedes Liliana; Romero, Analía Irma; Rajal, Verónica Beatriz; Castro Vidaurre, Elza Fani; Calvo, Jose Ignacio; et al.; Poperties of polyethersulphone ultrafiltration membranes modified with polyethylene glycols; Wiley; Polymer Engineering And Science; 54; 5; 9-2013; 1211-1221
dc.identifier.issn 0032-3888
dc.identifier.uri http://hdl.handle.net/11336/4736
dc.description.abstract Polyethersulfone ultrafiltration membranes have been prepared using polyethylene glycols (PEGs) of 400, 1000, and 10,000 gmol, as additive with dimethylacetamide as solvent. Infrared analysis proves that PEG leaves almost completely the surface of the membranes after 24 h of water immersion. Scanning electron microscopy, contact angle, and liquid–liquid displacement porometry have been used to characterize the membrane morphology, surface hydrophilicity and porous structure. The relative flux reduction factor, flux, retention—of PEG (20,000 and 35,000 g/mol) and bovine serum albumin (67,000 g/mol)—and pure water permeability have been measured for the membranes. Results show that the addition of PEG increases slightly hydrophilicity and decreases pore size and narrows the corresponding pore size distribution while thickening the skin layer, in spite of the fast disappearance of the added PEG form the membrane surface. The resulting flux and pure water permeability are higher when middle size PEGs are added but decrease again when very high molecular weight (MW) PEGs are added. Retention decreases initially for increasing MWs of PEG although for very long PEG chains (MW of 10,000 g/mol) retention increases again. After filtration, the membranes with PEG added showed a lower relative flux reduction that decreases for increasing MW of the added PEGs.
dc.format application/pdf
dc.language.iso eng
dc.publisher Wiley
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject POLYETHERSULFONE ULTRAFILTRATION MEMBRANE
dc.subject POLYETHYLENE GLYCOL ADDITIVE
dc.subject MEMBRANE CHARACTERIZATION
dc.subject.classification Ingeniería Química
dc.subject.classification Ingeniería Química
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title Poperties of polyethersulphone ultrafiltration membranes modified with polyethylene glycols
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-03-30 10:35:44.97925-03
dc.journal.volume 54
dc.journal.number 5
dc.journal.pagination 1211-1221
dc.journal.pais Estados Unidos
dc.journal.ciudad Hoboken
dc.description.fil Fil: Méndez, Mercedes Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación Para la Industria Química (i); Argentina
dc.description.fil Fil: Romero, Analía Irma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación Para la Industria Química (i); Argentina
dc.description.fil Fil: Rajal, Verónica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación Para la Industria Química (i); Argentina. University of California at Davis. Fogarty International Center; Estados Unidos
dc.description.fil Fil: Castro Vidaurre, Elza Fani. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación Para la Industria Química (i); Argentina
dc.description.fil Fil: Calvo, Jose Ignacio. Universidad de Valladolid; España
dc.description.fil Fil: Palacio, Laura. Universidad de Valladolid; España
dc.description.fil Fil: Hernandez, Antonio Maria. Universidad de Valladolid; España
dc.journal.title Polymer Engineering And Science
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/pen.23637
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/issn/http://onlinelibrary.wiley.com/doi/10.1002/pen.23637/abstract
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/issn/0032-3888


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)