writer：M. Khan, J. Shi, S. Nadeem, S. Ahmed, C.-L. Wang, J.-X. Zhou*, X. Ma*, M.-H. Huang*
keywords：Polymerized ionic liquids membranes, Porous polypyrrolidinium, Aging resistance, ROMP
source：期刊
specific source：Journal of Membrane Science, 2026, 732, 125545
Issue time：2026年

Polymerized ionic liquids (PILs) membranes demonstrated good potential for advanced separation potentials. To further improve the gas separation performance of PILs-based membranes, a flexible porous polypyrrolidinium membranes for CO 2 /N 2 separation has been developed through a one-step processing via a facile ring-openingmetathesis polymerization (ROMP), the resulting porous polypyrrolidinium membranes showed CO 2 permeability of 209 Barrer (PCPy-TFSI) and CO 2 /N 2 selectivity of 46.9 (PCPy-PF 6 ). More importantly, the porous polypyrrolidinium membranes showed improved anti-aging performance compared with PIM-1 membranes. This newly-developed ionic porous polymer membranes will bring new possibilities to new MMMs technology in the near future.