CO2 adsorption and catalytic application of imidazole ionic liquid functionalized porous organic polymers

A series of imidazole ionic liquid (IL) functionalized porous organic polymers (POPs) with high surface areas has been successfully prepared based on p-dichloroxylene (p-DCX) and N-methylimidazole (N-MI) as fundamental building blocks through the FeCl3-catalyzed Friedel-Crafts alkylation reaction. T...

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Published inPolymer chemistry Vol. 8; no. 11; pp. 1833 - 1839
Main Authors Hao, Shuang, Liu, Yuchuan, Shang, Chuning, Liang, Zhiqiang, Yu, Jihong
Format Journal Article
LanguageEnglish
Published 21.03.2017
Subjects
Carbon dioxide
Catalysis
Catalysts
Derivatives
Imidazole
Ionic liquids
Polymers
Uptakes
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Summary:A series of imidazole ionic liquid (IL) functionalized porous organic polymers (POPs) with high surface areas has been successfully prepared based on p-dichloroxylene (p-DCX) and N-methylimidazole (N-MI) as fundamental building blocks through the FeCl3-catalyzed Friedel-Crafts alkylation reaction. The IL-functionalized POPs show CO2 uptake up to 73.6 cm3 g-1 (273 K, 1 bar). Their isosteric heat of adsorption can be increased from 7.84 to 17.35 kJ mol-1 by adjusting the molar ratios of N-MI to p-DCX. These materials could also be used as reusable acid catalysts in the syntheses of benzimidazole derivatives from aromatic aldehydes and o-phenylene diamine in good yields (87-91%).
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ISSN:1759-9954
1759-9962
DOI:10.1039/c6py02091g