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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/48934

    Título
    Enhancement of CO2/CH4 permselectivity via thermal rearrangement of mixed matrix membranes made from an o-hydroxy polyamide with an optimal load of a porous polymer network
    Autor
    Soto Guzmán, Marvelia CenitAutoridad UVA
    Aguilar Lugo, Carla
    Rodríguez, Sara
    Palacio Martínez, LauraAutoridad UVA Orcid
    Lozano, Ángel E.
    Prádanos del Pico, Pedro LourdesAutoridad UVA Orcid
    Hernández Giménez, AntonioAutoridad UVA Orcid
    Año del Documento
    2020
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Separation and Purification Technology, 2020, vol. 247, 116895
    Zusammenfassung
    Mixed matrix membranes, MMMs, consisting of variable loads of a porous polymer network, PPN, within an o-hydroxipolyamide, HPA (6FCl-APAF, made from the reaction between 2,2-bis[4-chlorocarbonylphenyl)hexafluoropropane, 6FCl, and 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane, APAF), have been thermally treated to induce the rearrangement of HPA to a polybenzoxazole (β-TR-PBO). HPA is 6FCl-APAF was loaded with a PPN synthetized, by us, by combining triptycene (TRP) and trifluoroacetophenone (TFAP). Mechanical, thermal and morphological properties of the membranes have been determined. CO2/CH4 selectivity of MMMs decreased slightly both when the PPN load was augmented and when thermal rearrangement took place. The changes in selectivity can be attributed mostly to solubility effects for β-TR-MMMs and to diffusive effects for the MMM from neat HPA. CO2 and CH4 permeabilities increased to the 2008 Robesońs upper bond for an optimal 30% PPN load both before and after thermal rearrangement. These relatively good permselectivities are explained in terms of compaction, rigidity, fractional free volumes and filling-matrix interactions.
    Palabras Clave
    Mixed matrix membranes
    Membranas de matriz mixta
    Thermal rearrangement
    Reordenamiento térmico
    Polymer porous networks
    Redes poliméricas porosas
    ISSN
    1383-5866
    Revisión por pares
    SI
    DOI
    10.1016/j.seppur.2020.116895
    Patrocinador
    Gobierno de España (projects MAT2016-76413-C2-1-R and MAT2016-76413-C2-2-R)
    Junta de Castilla y León - Fondo Europeo de Desarrollo Regional (projects CLU2017-09, UIC082 and VA088G19)
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S1383586620313691?via%3Dihub
    Propietario de los Derechos
    © 2020 Elsevier
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/48934
    Tipo de versión
    info:eu-repo/semantics/acceptedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • SMAP - Artículos de revista [8]
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    Dateien zu dieser Ressource
    Nombre:
    Enhancement-CO2CH4-permselectivity.pdf
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