Premium
Intrinsically Microporous Polymer Nanosheets for High‐Performance Gas Separation Membranes
Author(s) -
Tamaddondar Marzieh,
Foster Andrew B.,
LuqueAlled Jose M.,
Msayib Kadhum J.,
Carta Mariolino,
Sorribas Sara,
Gorgojo Patricia,
McKeown Neil B.,
Budd Peter M.
Publication year - 2020
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201900572
Subject(s) - microporous material , monomer , membrane , materials science , bifunctional , polymer , chemical engineering , selectivity , gas separation , polymer chemistry , composite material , chemistry , organic chemistry , catalysis , biochemistry , engineering
Microporous polymer nanosheets with thicknesses in the range 3–5 nm and with high apparent surface area (Brunauer–Emmett–Teller surface area 940 m 2 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 CO 2 permeability and CO 2 /CH 4 selectivity, compared to pure PIM‐1.