Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202301512
Keywords
adsorption; gas selectivity; permeability; polymers of intrinsic microporosity; polymer membrane
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The development of polymers of intrinsic microporosity (PIMs) in the past two decades has created a class of unique microporous materials with both the attributes of microporous solid materials and the solubility of glassy polymers. Due to their solubility in common organic solvents, PIMs are easily processable and have potential applications in various fields such as membrane-based separation, catalysis, and electrochemical energy storage. This review specifically focuses on the dibenzodioxin linkage chemistry of PIMs, discussing design principles, synthetic strategies, characteristic properties, and potential applications. The structure-property correlation of dibenzodioxin PIMs is also analyzed for tailored synthesis and enhanced performances.
The development of polymers of intrinsic microporosity (PIMs) over the last two decades has established them as a distinct class of microporous materials, which combine the attributes of microporous solid materials and the soluble nature of glassy polymers. Due to their solubility in common organic solvents, PIMs are easily processable materials that potentially find application in membrane-based separation, catalysis, ion separation in electrochemical energy storage devices, sensing, etc. Dibenzodioxin linkage, Troger's base, and imide bond-forming reactions have widely been utilized for synthesis of a large number of PIMs. Among these linkages, however, most of the studies have been based on dibenzodioxin-based PIMs. Therefore, this review focuses precisely on dibenzodioxin linkage chemistry. Herein, the design principles of different rigid and contorted monomer scaffolds are discussed, as well as synthetic strategies of the polymers through dibenzodioxin-forming reactions including copolymerization and postsynthetic modifications, their characteristic properties and potential applications studied so far. Towards the end, the prospects of these materials are examined with respect to their utility in industrial purposes. Further, the structure-property correlation of dibenzodioxin PIMs is analyzed, which is essential for tailored synthesis and tunable properties of these PIMs and their molecular level engineering for enhanced performances making these materials suitable for commercial usage.
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