Polymer ultrapermeability from the inefficient packing of 2D chains

Polymer ultrapermeability from the inefficient packing of 2D chains

The promise of ultrapermeable polymers, such as poly(trimethylsilylpropyne) (PTMSP), for reducing the size and increasing the efficiency of membranes for gas separations remains unfulfilled due to their poor selectivity. We report an ultrapermeable polymer of intrinsic microporosity (PIM-TMN-Trip) t...

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Veröffentlicht in:Nature materials 2017-09, Vol.16 (9), p.932-937
Hauptverfasser: Rose, Ian, Bezzu, C. Grazia, Carta, Mariolino, Comesaña-Gándara, Bibiana, Lasseuguette, Elsa, Ferrari, M. Chiara, Bernardo, Paola, Clarizia, Gabriele, Fuoco, Alessio, Jansen, Johannes C., Hart, Kyle E., Liyana-Arachchi, Thilanga P., Colina, Coray M., McKeown, Neil B.
Format: Artikel
Sprache:eng
Schlagworte:
639/301/299/1013
639/638/298
639/638/455/941
Addition polymerization
Biogas
Biomaterials
Carbon dioxide
Carbon sequestration
Chains (polymeric)
Condensed Matter Physics
Gas mixtures
Gases
Materials Science
Membranes
Methane
Microporosity
Nanotechnology
Optical and Electronic Materials
Permeability
Polymers
Powder injection molding
Selectivity
Trip generation
Upper bounds
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Zusammenfassung:The promise of ultrapermeable polymers, such as poly(trimethylsilylpropyne) (PTMSP), for reducing the size and increasing the efficiency of membranes for gas separations remains unfulfilled due to their poor selectivity. We report an ultrapermeable polymer of intrinsic microporosity (PIM-TMN-Trip) that is substantially more selective than PTMSP. From molecular simulations and experimental measurement we find that the inefficient packing of the two-dimensional (2D) chains of PIM-TMN-Trip generates a high concentration of both small (
ISSN:1476-1122
1476-4660
DOI:10.1038/nmat4939