Accelerating Membrane‐based CO2 Separation by Soluble Nanoporous Polymer Networks Produced by Mechanochemical Oxidative Coupling

Achieving homogeneous dispersion of nanoporous fillers within membrane architectures remains a great challenge for mixed‐matrix membrane (MMMs) technology. Imparting solution processability of nanoporous materials would help advance the development of MMMs for membrane‐based gas separations. A mecha...

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Bibliographic Details
Published in:Angewandte Chemie 2018-03, Vol.130 (11), p.2866-2871
Main Authors: Zhu, Xiang, Hua, Yinying, Tian, Chengcheng, Abney, Carter W., Zhang, Peng, Jin, Tian, Liu, Gongping, Browning, Katie L., Sacci, Robert L., Veith, Gabriel M., Zhou, Hong‐Cai, Jin, Wanqin, Dai, Sheng
Format: Article
Language:eng ; ger
Subjects:
Carbon dioxide
Chemical synthesis
Chemistry
CO2/CH4-Trennung
Coupling (molecular)
Fillers
Mechanochemie
Membranes
Mischmembranen
Molecular weight
Nanoporöse Polymergerüste
Networks
Oxidative Kupplungen
Polymerization
Polymers
Separation
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Summary:Achieving homogeneous dispersion of nanoporous fillers within membrane architectures remains a great challenge for mixed‐matrix membrane (MMMs) technology. Imparting solution processability of nanoporous materials would help advance the development of MMMs for membrane‐based gas separations. A mechanochemically assisted oxidative coupling polymerization strategy was used to create a new family of soluble nanoporous polymer networks. The solid‐state ball‐milling method affords inherent molecular weight control over polymer growth and therefore provides unexpected solubility for the resulting nanoporous frameworks. MMM‐based CO2/CH4 separation performance was significantly accelerated by these new soluble fillers. We anticipate this facile method will facilitate new possibilities for the rational design and synthesis of soluble nanoporous polymer networks and promote their applications in membrane‐based gas separations. Mechanochemie hilft bei der Bildung nanoporöser Polymergerüste durch oxidative Kupplung. In der Kugelmühle lässt sich das Molekulargewicht des wachsenden Polymers kontrollieren, und es werden nanoporöse Gerüste mit ungewöhnlicher Löslichkeit erhalten. Der Einsatz dieser löslichen Füllstoffe in Mischmembranen beschleunigt die Trennung von CO2 und CH4 deutlich.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201710420