Abstract
This work describes newly synthesized composite polymeric membranes and their utilization in propane/propylene separation in a gas mixture. The nonporous composite polymers were successfully synthesized by using thermoplastic polyurethane (TPU) and several silver salts/silver salts with ionic liquids (ILs). Our studies showed that silver bis(trifluoromethanesulfonyl)imide (Ag[Tf2N]) containing membranes outperformed other silver salt containing membranes in terms of selectivity. In addition, to this finding, ILs, as additives for the membranes, enhanced the selectivity by facilitating improved coordination of the olefin with the silver ions in the dense composite polymers.
Original language | English |
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Pages (from-to) | 404-415 |
Number of pages | 12 |
Journal | Arabian Journal of Chemistry |
Volume | 13 |
Issue number | 1 |
Early online date | 17 May 2017 |
DOIs | |
Publication status | Published - Jan 2020 |
Keywords
- Membrane separation
- Composite polymer
- Ionic liquids
- Propane/propylene separation