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Glassy PEEK‐WC vs Rubbery Pebax®1657 Polymers: Effect on the Gas Transport in CuNi‐MOF Based Mixed Matrix Membranes

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Glassy PEEK‐WC vs Rubbery Pebax®1657 Polymers: Effect on the Gas Transport in CuNi‐MOF Based Mixed Matrix Membranes

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dc.contributor.author	Esposito, Elisa
dc.contributor.author	Bruno, Rosaria
dc.contributor.author	Monteleone, Marcello
dc.contributor.author	Fuoco, Alessio
dc.contributor.author	Ferrando Soria, Jesús
dc.contributor.author	Pardo Marín, Emilio
dc.contributor.author	Armentano, Donatella
dc.contributor.author	Jansen, Johannes C.
dc.date.accessioned	2020-02-19T14:33:47Z
dc.date.available	2020-02-19T14:33:47Z
dc.date.issued	2020
dc.identifier.citation	Esposito, Elisa Bruno, Rosaria Monteleone, Marcello Fuoco, Alessio Ferrando Soria, Jesús Pardo Marín, Emilio Armentano, Donatella Jansen, Johannes C. 2020 Glassy PEEK‐WC vs Rubbery Pebax®1657 Polymers: Effect on the Gas Transport in CuNi‐MOF Based Mixed Matrix Membranes Applied Sciences 10 4 1310 1329
dc.identifier.uri	https://hdl.handle.net/10550/73155
dc.description.abstract	Mixed matrix membranes (MMMs) are seen as promising candidates to overcome the fundamental limit of polymeric membranes, known as the so‐called Robeson upper bound, which defines the best compromise between permeability and selectivity of neat polymeric membranes. To overcome this limit, the permeability of the filler particles in the MMM must be carefully matched with that of the polymer matrix. The present work shows that it is not sufficient to match only the permeability of the polymer and the dispersed phase, but that one should consider also the individual contributions of the diffusivity and the solubility of the gas in both components. Here we compare the gas transport performance of two different MMMs, containing the metal-organic framework CuNi‐MOF in the rubbery Pebax®1657 and in the glassy poly(ether‐ether‐ketone) with cardo moiety, PEEK‐WC. The chemical and structural properties of MMMs were investigated by means of FT‐IR spectroscopy, scanning electron microscopy and EDX analysis. The influence of MOF on the mechanical and thermal properties of both polymers was investigated by tensile tests and differential scanning calorimetry, respectively. The MOF loading in Pebax®1657 increased the ideal H2/N2 selectivity from 6 to 8 thanks to an increased H2 permeability. In general, the MOF had little effect on the Pebax®165 membranes because an increase in gas solubility was neutralized by an equivalent decrease in effective diffusivity. Instead, the addition of MOF to PEEK‐WC increases the ideal CO2/CH4 selectivity from 30 to ~48 thanks to an increased CO2 permeability (from 6 to 48 Barrer). The increase in CO2 permeability and CO2/CH4 selectivity is maintained under mixed gas conditions.
dc.language.iso	eng
dc.relation.ispartof	Applied Sciences, 2020, vol. 10, num. 4, p. 1310-1329
dc.subject	Solucions polimèriques
dc.subject	Termoplàstics
dc.title	Glassy PEEK‐WC vs Rubbery Pebax®1657 Polymers: Effect on the Gas Transport in CuNi‐MOF Based Mixed Matrix Membranes
dc.type	journal article	es_ES
dc.date.updated	2020-02-19T14:33:47Z
dc.identifier.doi	10.3390/app10041310
dc.identifier.idgrec	136342
dc.rights.accessRights	open access	es_ES