Mostrar el registro sencillo del ítem

dc.contributor.authorTena Matias, Alberto 
dc.contributor.authorMarcos Fernández, Ángel
dc.contributor.authorPalacio Martínez, Laura 
dc.contributor.authorPrádanos del Pico, Pedro Lourdes 
dc.contributor.authorLozano, Ángel E.
dc.contributor.authorAbajo, Javier de
dc.contributor.authorHernández Giménez, Antonio 
dc.date.accessioned2016-12-22T08:43:53Z
dc.date.available2016-12-22T08:43:53Z
dc.date.issued2013
dc.identifier.citationJournal of Membrane Science, 2013, Volume 434, p. 26–34es
dc.identifier.issn0376-7388es
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/21894
dc.descriptionProducción Científicaes
dc.description.abstractA complete series of aliphatic aromatic copoly(etherimide)s, based on an aromatic dianhydride (BPDA), an aromatic diamine (ODA) and a diamino terminated poly(ethylene oxide) (PEO2000) of 2000 g/mol molecular weight, using different PEO contents, has been synthesized. Cast films of these copolymers have been thermally treated and characterized by FTIR-ATR, DSC, TGA and SAXS. It has been found that there is a direct relationship between phase segregation and permeability for increasing treatment temperatures. Results show that permeability is higher when PEO content increases in the copolymer. Selectivity for O2/N2 and CO2/CH4 gas pairs follows the same tendency, while those for CO2/N2, and CH4/N2 give higher selectivities for intermediate (30-40 %) PEO contents. Especially promising are the results for these two pairs of gases because materials with high permeability with high selectivity can be obtained. The Maxwell model has been applied to predict permeability (for CO2, CH4, O2 and N2) from known data for pure BPDA-ODA and neat PEO and it has been found that assuming PEO as the dispersed phase, the use of this equation is adequate for percentages up to approximately a 40 % over which we should assume that it is the aromatic part of the copolymer which plays the role of dispersed phase.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCopoly(ether-imide) membranees
dc.subjectThermal treatmentes
dc.subjectGas separationes
dc.titleOn the influence of the proportion of PEO in thermally controlled phase segregation of copoly(ether-imide)s for gas separationes
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1016/j.memsci.2013.01.036es
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0376738813000732es
dc.peerreviewedSIes
dc.description.projectJunta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA302U13)es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International


Ficheros en el ítem

Thumbnail

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem