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dc.contributor.author
Méndez, Mercedes Liliana
dc.contributor.author
Romero, Analía Irma
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Rajal, Verónica Beatriz
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Castro Vidaurre, Elza Fani
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Calvo, Jose Ignacio
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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/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Polyethersulfone Ultrafiltration Membrane
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Polyethylene Glycol Additive
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Membrane Characterization
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Ingeniería Química
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Ingeniería Química
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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
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Fil: Calvo, Jose Ignacio. Universidad de Valladolid; España
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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
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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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