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Ionized Aromatization Approach to Charged Porous Polymers as Exceptional Absorbents

Abstract

Ionic porous polymers hold great attention in gas adsorption, catalyst and water purification due to their substantial porous and charged structures. However, the development of such kinds of materials is suffering from the lack of either ionic functional monomers or efficient polymerization methods. In this work, we report a one-step ionized aromatization polycondensation of two neutral monomers, tetrachloropropene and different bis-(trimethylsilanylamino) substituted derivatives. The resulting cyclopropenium cation-linked porous polymers features the unique skeletons with charge-extended distribution, deformability, and substantial amino groups, which renders them with unusual capture capabilities toward various guest molecules. For example, the physical absorption of nonpolar N2, is dominant by their intrinsic shape-persistent structural character. The excellent CO2 uptakes up to 2.2 mmol g-1, are mainly attributed to their high polar amino-containing cationic skeletons. While, for the 1,4–piperazine-based porous polymer, its ultra-high selective capture of anionic dye (e.g. Congo Red, 3480 mg g-1) in water, representing one of the highest values within the documented porous materials, is synergetically driven by its unique extended cation-charged and transformable skeletons.

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Publication details

The article was received on 06 Mar 2019, accepted on 13 Apr 2019 and first published on 15 Apr 2019


Article type: Paper
DOI: 10.1039/C9PY00366E
Citation: Polym. Chem., 2019, Accepted Manuscript

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    Ionized Aromatization Approach to Charged Porous Polymers as Exceptional Absorbents

    Y. Zhang, X. Wang, T. Palani, W. Ming, F. Qiu, K. Yu, P. Liu, Y. Su and F. Zhang, Polym. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9PY00366E

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