Intrinsically Microporous Polymer Nanosheets for High Performance Gas Separation Membranes

Marzieh Tamaddondar, Andrew Foster, José Luque-Alled, Kadhum J. Msayib, Mariolino Carta, Sara Sorribas, Patricia Gorgojo, Neil B. Mckeown, Peter Budd

Research output: Contribution to journalArticlepeer-review

Abstract

Microporous polymer nanosheets with thicknesses in the range 3-5 nm and with high apparent surface area (BET surface area 940 m2 g-1) are formed when the effectively bifunctional (tetrafluoro) monomer used in the preparation of the prototypical polymer of intrinsic microporosity PIM-1 is replaced with an effectively tetrafunctional (octafluoro) monomer to give a tightly-crosslinked network structure. When employed as a filler in mixed matrix membranes based on PIM-1, a low loading of 0.5 wt.% network-PIM-1 nanosheets gives rise to enhanced CO2 permeability and CO2/CH4 selectivity, compared to pure PIM-1.
Original languageEnglish
Article number1900572
Pages (from-to)1-8
Number of pages8
JournalMacromolecular rapid communications
Volume41
Issue number2
Early online date17 Dec 2019
DOIs
Publication statusPublished - 2020

Keywords

  • Polymers of intrinsic microporosity (PIMs)
  • network-PIM-1
  • nanosheets
  • crosslinking
  • mixed matrix membranes (MMMs)
  • gas separation

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