Gas separation membranes from polymers of intrinsic microporosity

Budd, Peter M., Msayib, Kadhum, Tattershall, Carin E., Ghanem, Bader S., Reynolds, Kevin J., McKeown, Neil B. and Fritsch, Detlev 2005. Gas separation membranes from polymers of intrinsic microporosity. Journal of Membrane Science 251 (1-2) , pp. 263-269. 10.1016/j.memsci.2005.01.009

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Abstract

When polymeric membranes are employed to remove selectively one component from a gaseous mixture, there is generally a trade-off between selectivity and permeability. Data are presented for two polymers of intrinsic microporosity, PIM-1 and PIM-7, which show a significant advance across the previous upper bound of performance for commercially important gas pairs, including O2/N2 and CO2/CH4. The exceptional properties of PIMs arise from their rigid but contorted molecular structures, which frustrate packing and so create free volume, coupled with chemical functionality giving strong intermolecular interactions.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	Gas separation; Selectivity; Permeability; Upper bound; Polymer membranes
Publisher:	Elsevier
ISSN:	0376-7388
Last Modified:	19 Mar 2016 23:12
URI:	https://orca.cardiff.ac.uk/id/eprint/42824

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