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Gas Separation Properties of Polyimide Thin Films on Ceramic Supports for High Temperature Applications

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Gas Separation Properties of Polyimide Thin Films on Ceramic Supports for High Temperature Applications

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dc.contributor.author Escorihuela-Roca, Sara es_ES
dc.contributor.author Tena, Alberto es_ES
dc.contributor.author Shishatskiy, Sergey es_ES
dc.contributor.author Escolástico Rozalén, Sonia es_ES
dc.contributor.author Brinkmann, Torsten es_ES
dc.contributor.author Serra Alfaro, José Manuel es_ES
dc.contributor.author Abetz, Volker es_ES
dc.date.accessioned 2019-09-11T20:01:34Z
dc.date.available 2019-09-11T20:01:34Z
dc.date.issued 2018 es_ES
dc.identifier.uri http://hdl.handle.net/10251/125581
dc.description.abstract [EN] Novel selective ceramic-supported thin polyimide films produced in a single dip coating step are proposed for membrane applications at elevated temperatures. Layers of the polyimides P84 (R), Matrimid 5218 (R), and 6FDA-6FpDA were successfully deposited onto porous alumina supports. In order to tackle the poor compatibility between ceramic support and polymer, and to get defect-free thin films, the effect of the viscosity of the polymer solution was studied, giving the entanglement concentration (C*) for each polymer. The C* values were 3.09 wt. % for the 6FDA-6FpDA, 3.52 wt. % for Matrimid (R), and 4.30 wt. % for P84 (R). A minimum polymer solution concentration necessary for defect-free film formation was found for each polymer, with the inverse order to the intrinsic viscosities (P84 (R) >= Matrimid (R) >> 6FDA-6FpDA). The effect of the temperature on the permeance of prepared membranes was studied for H-2, CH4, N-2, O-2, and CO2. As expected, activation energy of permeance for hydrogen was higher than for CO2, resulting in H-2/CO2 selectivity increase with temperature. More densely packed polymers lead to materials that are more selective at elevated temperatures. es_ES
dc.description.sponsorship This work was financially supported by the Spanish Government through predoctoral training grants for Centres/units of Excellence "Severo Ochoa" (SEV-2016-0683), which gave S. Escorihuela the opportunity to undertake a research stay at Helmholtz-Zentrum Geesthacht (HZG), Spanish Ministry of Economy and Competitiveness (Project ENE2014-57651-R) and Helmholtz-Zentrum Geesthacht (HZG) through the technology transfer project program and by the Helmholtz Association of German Research Centers through the Helmholtz Portfolio MEMBRAIN. The authors thank M. Schieda and P. Merten for the support in the coating process and viscosity determination, and the microscopy service at Universitat Politecnica de Valencia (UPV) for the FE-SEM images. es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation MINECO/SEV-2016-0683 es_ES
dc.relation MINECO/ENE2014-57651-R es_ES
dc.relation.ispartof Membranes es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Polymer/Ceramic Thin Film Composite Membrane es_ES
dc.subject Entanglement concentration es_ES
dc.subject Hydrogen es_ES
dc.subject Carbon dioxide es_ES
dc.subject Gas separation membranes es_ES
dc.subject Intrinsic viscosity es_ES
dc.subject Polyimides es_ES
dc.title Gas Separation Properties of Polyimide Thin Films on Ceramic Supports for High Temperature Applications es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/membranes8010016 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Escorihuela-Roca, S.; Tena, A.; Shishatskiy, S.; Escolástico Rozalén, S.; Brinkmann, T.; Serra Alfaro, JM.; Abetz, V. (2018). Gas Separation Properties of Polyimide Thin Films on Ceramic Supports for High Temperature Applications. Membranes. 8(1). https://doi.org/10.3390/membranes8010016 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.3390/membranes8010016 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 8 es_ES
dc.description.issue 1 es_ES
dc.identifier.eissn 2077-0375 es_ES
dc.identifier.pmid 29518942
dc.identifier.pmcid PMC5872198
dc.relation.pasarela 359289 es_ES
dc.contributor.funder Ministerio de Economia y Competitividad es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


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