Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/67015
Título
Mixed matrix membranes using porous organic polymers (POPs)—Influence of textural properties on CO2/CH4 separation
Autor
Año del Documento
2023
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Polymers, 2023, Vol. 15, Nº. 20, 4135
Zusammenfassung
Mixed matrix membranes (MMMs) provide the opportunity to test new porous materials in challenging applications. A series of low-cost porous organic polymer (POPs) networks, possessing tunable porosity and high CO2 uptake, has been obtained by aromatic electrophilic substitution reactions of biphenyl, 9,10-dihydro-9,10-dimethyl-9,10-ethanoanthracene (DMDHA), triptycene and 1,3,5-triphenylbenzene (135TPB) with dimethoxymethane (DMM). These materials have been characterized by FTIR, 13C NMR, WAXD, TGA, SEM, and CO2 uptake. Finally, different loadings of these POPs have been introduced into Matrimid, Pebax, and chitosan:polyvinyl alcohol blends as polymeric matrices to prepare MMMs. The CO2/CH4 separation performance of these MMMs has been evaluated by single and mixed gas permeation experiments at 4 bar and room temperature. The effect of the porosity of the porous fillers on the membrane separation behavior and the compatibility between them and the different polymer matrices on membrane design and fabrication has been studied by Maxwell model equations as a function of the gas permeability of the pure polymers, porosity, and loading of the fillers in the MMMs. Although the gas transport properties showed an increasing deviation from ideal Maxwell equation prediction with increasing porosity of the POP fillers and increasing hydrophilicity of the polymer matrices, the behavior of biopolymer-based CS:PVA MMMs approached that of Pebax-based MMMs, giving scope to not only new filler materials but also sustainable polymer choices to find a place in membrane technology.
Materias (normalizadas)
Polymers
Polímeros y polimerización
Gases - Separation
Gas separation membranes
Biopolymers
Biopolímeros
Mixed matrix membranes
Organic chemistry
Polymer Sciences
Materias Unesco
2210.19 Fenómenos de Membrana
2306 Química Orgánica
2206.10 Polímeros
3312 Tecnología de Materiales
ISSN
2073-4360
Revisión por pares
SI
Patrocinador
Generalitat Valenciana y Universidad de Cantabria - (grant PRO-81)
Agencia Estatal de Investigación (AEI), Fondo Europeo de Desarrollo Regional (FEDER), Unión Europea (EU) - (Projects: PID2019-109403RBC22 y PID2019-109403RB-C21)
Agencia Estatal de Investigación (AEI), Fondo Europeo de Desarrollo Regional (FEDER), Unión Europea (EU) - (Projects: PID2019-109403RBC22 y PID2019-109403RB-C21)
Version del Editor
Propietario de los Derechos
© 2023 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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