Enhancing the CO2 plasticization resistance of thin polymeric membranes by designing Metal-polymer complexes

Supramolecular Polymer Networks of Ion-Coordinated Polybenzimidazole with Simultaneously Improved H2 Permeability and H2/CO2 Selectivity

“…10,34,35 Metal ion−polymer complexes were also reported with excellent CO 2 /CH 4 separation properties due to their strong size-sieving ability. 36,37 However, to the best of our knowledge, no metal ion-induced SPNs have been reported for high-temperature H 2 /CO 2 separation.…”

“…SPNs of ion-coordinated PBI have demonstrated superior self-healing and mechanical properties. , The metal ion-based coordination is often more stable than the H-bond-based coordination due to the higher bond energy and lower sensitivities to moisture for the ion–imidazole interactions. ,, Metal ion–polymer complexes were also reported with excellent CO 2 /CH 4 separation properties due to their strong size-sieving ability. , However, to the best of our knowledge, no metal ion-induced SPNs have been reported for high-temperature H 2 /CO 2 separation.…”

Covalent and non-covalent approaches to suppress plasticization of polymer membranes for gas separation

“…When the supply pressure increases from 1 to 15 bar, the CO 2 / CH 4 selectivity increases from 37 to 50, demonstrating improved affinity due to the presence of the metal ions. 65 An MMM has also been designed in which polymer derivatives and GO are added to a polymer matrix. The membrane is prepared by using Pebax s 1657 as the main polymer matrix, mixing a 50 wt% loading of a low-molecular-weight PEG derivative (PEG-MEA; poly(ethylene glycol) methyl ethyl acrylate) and adding GO nanosheets.…”

“…When the supply pressure increases from 1 to 15 bar, the CO 2 /CH 4 selectivity increases from 37 to 50, demonstrating improved affinity due to the presence of the metal ions. 65…”

Fast‐current‐driven synthesis of ultrathin ZIF‐8 membrane on ceramic tube for propene/propane separation

“…[1][2][3][4][5][6] Membrane-based separation is an attractive alternative for many molecular separations due to its energy-saving and highly efficient advantages. 4,[7][8][9][10] At present, polymer membranes are widely used in industry, [11][12][13][14][15] but they also encounter the problem of plasticization and the bottleneck of a tradeoff between selectivity and permeability. [16][17][18] Therefore, promising membrane materials with excellent performance are always desired in membrane separation technology.…”