Conjugated Porous Organic Polymers for Gas Sorption and Chemical Catalysis
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, CHINA
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Conjugated organic polymers, possessing intrinsic properties of large surface areas, high thermal and chemical stabilities, and low skeleton density, exhibit potential applications in gas storage and separation, and catalysis. Based on special three-dimensional rigid monomers, various heteroatom-containing organic microporous polymers were prepared through a wide variety of C–C coupling reactions and further characterized at the molecular level by 13C CP/MAS NMR spectrum, as well as other techniques. All the obtained polymers are chemically and thermally stable. According to the obtained nitrogen physisorption isotherms, the BET specific surface area for these polymers varies between 700 and 2200 m2 g–1. The sorption measurements show the polymers possess nice adsorption capacity to hydrogen and carbon dioxide, showing a good gas separation of carbon dioxide over methane/nitrogen. In the meanwhile, some polymers containing catalytic moieties display good catalysis ability and catalyst recycling feature.