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Gas Transport in a Polymer of Intrinsic Microporosity (PIM-1) Substituted with Pseudo-Ionic Liquid Tetrazole-Type Structures
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Number of Authors: 72020 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 53, no 20, p. 8951-8959Article in journal (Refereed) Published
Abstract [en]

We report a side group modification strategy to tailor the structure of a polymer of intrinsic microporosity (PIM-1). PIM-1 with an average of similar to 50% of the repeat units converted to tetrazole is prepared, and a subsequent reaction then introduces three types of pseudo-ionic liquid tetrazole-like structures (PIM-1-ILx). The presence of pseudo-ionic liquid functional groups in the PIM-1 structure increases gas selectivities for O-2/N-2 and CO2/N-2, while it decreases pure-gas permeabilities. The overall gas separation performance of PIM-1-ILx is close to the 2008 Robeson upper bound. Since the tetrazoles are versatile groups for building a wide variety of ionic liquids, the modification method can be expanded to explore a broad spectrum of functional groups.

Place, publisher, year, edition, pages
2020. Vol. 53, no 20, p. 8951-8959
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Chemical Sciences
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URN: urn:nbn:se:su:diva-188901DOI: 10.1021/acs.macromol.0c01321ISI: 000586789500023PubMedID: 33132419OAI: oai:DiVA.org:su-188901DiVA, id: diva2:1517766
Available from: 2021-01-14 Created: 2021-01-14 Last updated: 2022-02-25Bibliographically approved

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Guiver, Michael D.Saeedi Garakani, Sadaf

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