Synthesis of new crosslinked porous ammonium‐based poly(ionic liquid) and application in CO2 adsorption |
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| Authors: | Guangren Yu Qingzeng Li Na Li Ziwei Man Chenghao Pu Charles Asumana Xiaochun Chen |
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| Affiliation: | Beijing Key Laboratory of Membrane Science and Technology and College of Chemical Engineering, Beijing University of Chemical Technology, , Beijing 100029, People's Republic of China |
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| Abstract: | A new poly(ionic liquid) of N,N‐methylenebisacrylamide (MBA)‐crosslinked‐poly(4‐vinylbenzyltriethylammonium hexafluorophosphate)(MBA‐crosslinked‐PVBTEA]PF6]) is prepared through the ion exchange of KPF6 with the precursor of MBA‐crosslinked‐PVBTEA]Cl]; the precursor is synthesized by 4‐vinylbenzyltriethylammonium chloride and MBA via inverse suspension polymerization. MBA‐crosslinked‐PVBTEA]PF6] is a thermally stable (decomposes at nearly 300°C) and porous (apparent porosity of 64.3% and specific surface of 39.12 m2/g) polymer particle with high purity, as indicated by Fourier transformed infrared, energy dispersive spectroscopy, thermogravimetric, scanning electron microscopy, and porous analyses. It is observed that MBA‐crosslinked‐PVBTEA]PF6] has good CO2 adsorption capability of 14.04 mg/g at 0.2 MPa and 25°C, and can be recovered by desorption at vacuum and 80°C, and reused with 99% CO2 adsorption after four cycles. POLYM. ENG. SCI., 54:59–63, 2014. © 2013 Society of Plastics Engineers |
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