RT info:eu-repo/semantics/article
T1 Mixed matrix membranes using porous organic polymers (POPs)—Influence of textural properties on CO2/CH4 separation
A1 Matesanz Niño, Laura
A1 Moranchel Pérez, Jorge
A1 Álvarez, Cristina
A1 Lozano, Ángel E.
A1 Casado Coterillo, Clara
K1 Polymers
K1 Polímeros y polimerización
K1 Gases - Separation
K1 Gas separation membranes
K1 Biopolymers
K1 Biopolímeros
K1 Mixed matrix membranes
K1 Organic chemistry
K1 Polymer Sciences
K1 2210.19 Fenómenos de Membrana
K1 2306 Química Orgánica
K1 2206.10 Polímeros
K1 3312 Tecnología de Materiales
AB 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.
PB MDPI
SN 2073-4360
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/67015
UL https://uvadoc.uva.es/handle/10324/67015
LA eng
NO Polymers, 2023, Vol. 15, Nº. 20, 4135
NO Producción Científica
DS UVaDOC
RD 24-dic-2024