Glassy PEEK‐WC vs Rubbery Pebax®1657 Polymers: Effect on the Gas Transport in CuNi‐MOF Based Mixed Matrix Membranes
| Autor: | Alessio Fuoco, Rosaria Bruno, Emilio Pardo, Jesus Ferrando Soria, Marcello Monteleone, Johannes C. Jansen, Donatella Armentano, Elisa Esposito |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Solucions polimèriques 02 engineering and technology 010402 general chemistry 01 natural sciences lcsh:Technology lcsh:Chemistry Differential scanning calorimetry Pebax®1657 Rubbery polymer Peek General Materials Science Gas separation Solubility Instrumentation lcsh:QH301-705.5 CuNi-MOF Fluid Flow and Transfer Processes chemistry.chemical_classification lcsh:T Process Chemistry and Technology Glassy polymer Termoplàstics General Engineering PEEK-WC Polymer 021001 nanoscience & nanotechnology lcsh:QC1-999 0104 chemical sciences Computer Science Applications Membrane Chemical engineering chemistry lcsh:Biology (General) lcsh:QD1-999 Permeability (electromagnetism) lcsh:TA1-2040 Barrer Mixed matrix membrane 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) pebax®1657 lcsh:Physics |
| Zdroj: | 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 Applied sciences 10 (2020): 1310. doi:10.3390/app10041310 info:cnr-pdr/source/autori:E. Esposito; R. Bruno; M. Monteleone; A. Fuoco; J.F. Soria; E. Pardo; D. Armentano; J.C. Jansen/titolo:Glassy PEEK-WC vs. rubbery Pebax®1657 polymers: Effect on the gas transport in CuNi-MOF based mixed matrix membranes/doi:10.3390%2Fapp10041310/rivista:Applied sciences/anno:2020/pagina_da:1310/pagina_a:/intervallo_pagine:1310/volume:10 RODERIC. Repositorio Institucional de la Universitat de Valéncia instname Applied Sciences Volume 10 Issue 4 Applied Sciences, Vol 10, Iss 4, p 1310 (2020) |
| Popis: | 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&ndash 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. |
| Databáze: | OpenAIRE |
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