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An Efficient Polymer Molecular Sieve for Membrane Gas Separations

Open access
Carta, Mariolino, Malpass-Evans, Richard, Croad, Matthew, Rogan, Yulia, Jansen, Johannes C., Bernardo, Paola, Bazzarelli, Fabio, McKeown, Neil B.·2013·Science

Abstract

Bicyclic Bridge to Improvement: Polymers of intrinsic microporosity are a recently developed class of contorted rigid glassy ladderlike polymers having very high free volume (open internal spaces). The intrinsic porosity of these materials has made them of interest for ultrahigh permeability gas separation membranes. However, while the polymers show good gas permeability, they have only moderate gas selectivity. Carta et al. (p. 303 ; see the Perspective by Guiver and Lee ) hypothesized that if they could replace the dioxin-like rings in their polymers with stiffer bridged bicyclic rings, they could improve the membrane properties of the polymer. By exploiting reactions connected to the formation of Tröger's base to form the multiple covalent bonds needed to make the bicyclic rings, the resulting polymers showed significantly improved selectivity and permeability.

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Metadata

Authors
Carta, M., Malpass-Evans, R., Croad, M., Rogan, Y., Jansen, J. C., Bernardo, P., Bazzarelli, F., & McKeown, N. B.
Venue
Science
Published
2013-01-18
Volume
339
Issue
6117
Pages
303-307
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2023562556
Cited by
1,119
References
0
FWCI
108.93
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: An Efficient Polymer Molecular Sieve for Membrane Gas Separations. https://app.cochat.ai/papers/10.1126/science.1228032
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Carta, M., Malpass-Evans, R., Croad, M., Rogan, Y., Jansen, J. C., Bernardo, P., Bazzarelli, F., & McKeown, N. B. (2013). An Efficient Polymer Molecular Sieve for Membrane Gas Separations. Science. https://doi.org/10.1126/science.1228032

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.