Journal
JOURNAL OF MATERIALS SCIENCE
Volume 53, Issue 14, Pages 10469-10478Publisher
SPRINGER
DOI: 10.1007/s10853-018-2243-2
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Funding
- National Natural Science Foundation of China [51503107]
- Shandong Province Natural Science Foundation [ZR2012EMM009, ZR2013EMQ005]
- Foundation of Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education/Shandong Province of China [KF2016]
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A series of novel silane-based hyper-cross-linked porous polymers was prepared through the Friedel-Crafts alkylation reaction of dimethyldiphenylsilane as the monomer and formaldehyde dimethyl acetal as the external cross-linker. The structures of the polymers were confirmed by FTIR and solid-state cross-polarization magic-angle spinning C-13 NMR. We investigated the porous polymers with different ratios of dimethyldiphenylsilane to formaldehyde dimethyl acetal. Porous properties were determined by nitrogen, carbon dioxide and hydrogen adsorptions. The results revealed that the porous materials possessed surface areas from 742 to 1205 m(2) g(-1) with the increasing amount of formaldehyde dimethyl acetal. Moreover, this material exhibited high thermal stabilities, good CO2 capture, and H-2 storage capacities. The material was also used as adsorbent for organic dyes in aqueous solution and showed an excellent adsorption capacity of 952 mg g(-1) for Congo red dye. These results suggest that the silane-based hyper-cross-linked porous polymers are promising materials for CO2 capture, H-2 storage, and water treatment.
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