Abstract
Porous poly(ionic liquid)s based on copolymer of 1-allyl-3-methyimidazolium tetrafluoroborate and acrylonitrile with 70:30 monomer ratio were prepared and characterized for CO2 sorption. The well-developed pore structure are formed in all the poly(ionic liquid)s and the pore size distribution(PSD) mainly concentrates in 0.4 ~ 0.8 nm. The effects of different pore-forming agents and their amount on the porous structure and CO2 sorption were also discussed. For example, porous poly(ionic liquid) treated with n-heptane as the pore-forming agent and the amount of n-heptane 16 mL has the highest CO2 sorption capacity of 1.43 wt % at 273 K and 0.101 MPa.
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Acknowledgements
The authors would like to thank the National Natural Science Foundation of China (Grant No. 20807056), the Foundation of Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education (Grant No. CPEUKF08-09) and Young Scholars of China University of Mining And Technology (Grant No.OH060102 and No.OH080254) for financial support.
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Zhu, J., Zhou, J., Zhang, H. et al. CO2 sorption capacity of porous poly(ionic liquid)s. J Polym Res 18, 2011–2015 (2011). https://doi.org/10.1007/s10965-011-9609-3
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DOI: https://doi.org/10.1007/s10965-011-9609-3