Journal
RSC ADVANCES
Volume 4, Issue 45, Pages 23389-23395Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra03163f
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Funding
- National Natural Science Foundation of China [21136005, 21303084]
- Jiangsu Provincial Science Foundation for Youths [BK20130921]
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By chain radical copolymerizations of imidazolium-type ionic liquids and divinylbenzene, mesoporous poly(ionic liquid) s with tunable pore structures were synthesized. The pore size and copolymer composition involving the ionic liquid and divinylbenzene can be controlled through varying the solvents. A series of 3-alkyl-1-vinylimidazolium bromide ionic liquids with different carbon chain lengths of 4, 6, 8, 12 and 16 in the alkyl groups were used in the synthesis, which is significant for the formation of pore structures. The obtained poly(ionic liquid) s were characterized by BET, CHN elemental analysis, FT-IR and UV-vis spectra. The results indicated that poly(ionic liquid) s with varied mesopores and compositions can be facilely achieved in this system. CO2 sorption capability and sorption-desorption cycling were tested, showing superior adsorption capability for CO2 and durable sorption properties.
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