CO2 adsorption and catalytic application of imidazole ionic liquid functionalized porous organic polymers. Issue 11 (6th March 2017)

• Record Type: Journal Article
• Authors: Hao, Shuang; Liu, Yuchuan; Shang, Chuning; Liang, Zhiqiang; Yu, Jihong
• Is Part Of: Polymer chemistry. Volume 8:Issue 11(2017)
• Page Start: 1833
• Page End: 1839
• Publication Date: 2017-03-06
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c6py02091g
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : A class of imidazole ionic liquid functionalized porous organic polymers has been synthesized by the Friedel–Crafts alkylation reaction. The resulting materials show high CO2 uptake and catalytic activity in the syntheses of benzimidazole derivatives. Abstract : 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 cm 3 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%).