Poly(vinylimidazole-co-butyl acrylate) membranes for CO2 separation
文献类型：期刊论文
| 作者 | Song, Ting1,2; Deng, Jing3; Deng, Liyuan3; Bai, Lu2; Zhang, Xiangping2; Zhang, Suojiang2; Szabo, Peter1; Daugaard, Anders E.1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2019-01-03 |
| 卷号 | 160页码:223-230 |
| ISSN号 | 0032-3861 |
| 关键词 | N-vinylimidazole poly(ionic liquid) Crosslinking free-standing membrane Gas separation |
| DOI | 10.1016/j.polymer.2018.11.058 |
| 英文摘要 | Room temperature ionic liquids (RTILs) are known to exhibit high CO2 solubility, which makes them interesting candidates for separation and purification of mixed gas streams. Particularly, RTILs based on imidazoles have shown very promising results. However, membranes of the corresponding poly(RT-IL)s are inherently brittle, which makes them too fragile for use in freestanding membranes. Therefore, copolymers of N-vinylimidazole (VIm) and butyl acrylate (BuA) were prepared, showing reactivity ratios of r(BuA) = 1.91-2.02 and r(VIm) = 0.094-0.10. The prepared copolymers of poly(VIm-co-BuA) with a copolymer composition of 24:76 had sufficiently low T-g ( - 6.6 degrees C) and were flexible enough to be used for membrane preparation. The copolymer was quarternized and crosslinked in a one-pot reaction into thin film membranes employing a mixture of mono and difunctional alkyl halides. Membranes were prepared using a mixture of 1:8, 1:2 and 1:0 of 1,6-dibromohexane and 1-bromobutane, resulting in different degrees of crosslinking. The one-pot process additionally allows incorporation of up to 16 wt% free RTIL (BMIM Tf2N) in the 1:0 ratio membranes. All membranes were tested for CO2 permeability (33.7-54.38 barrer), and for selectivity towards N-2 and CH4. By varying the crosslinking degree, it was observed that CO2 permeability increased with decreasing the degree of crosslinking. Finally, films prepared with free RTIL led to an improvement of the gas separation performance, with CO2 permeability increased from 33.71 to 38.77 barrer and CO2/N-2 permselectivity increased from 20.81 to 27.82. |
| WOS关键词 | COPOLYMERIZATION REACTIVITY RATIOS ; IONIC LIQUIDS ; POLY(IONIC LIQUID)S ; ANION-EXCHANGE ; LINEAR METHODS ; CROSS-LINKING ; PERFORMANCE ; POLYMER ; EXTRACTION ; NANOTUBES |
| 资助项目 | Department of Chemical and Biochemical Engineering at the Technical university of Denmark ; National Key R&D Program of China[2017YFB0603401-03] ; National Natural Science Foundation of China[21425625] ; Institute of Process Engineering in Beijing |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000455024100024 |
| 资助机构 | Department of Chemical and Biochemical Engineering at the Technical university of Denmark ; National Key R&D Program of China ; National Natural Science Foundation of China ; Institute of Process Engineering in Beijing |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27695]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Suojiang; Daugaard, Anders E. |
| 作者单位 | 1.Tech Univ Denmark, Dept Chem & Biochem Engn, Danish Polymer Ctr, Bldg 229, DK-2800 Lyngby, Denmark 2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, Beijing 100190, Peoples R China 3.Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway |
| 推荐引用方式 GB/T 7714 | Song, Ting,Deng, Jing,Deng, Liyuan,et al. Poly(vinylimidazole-co-butyl acrylate) membranes for CO2 separation[J]. POLYMER,2019,160:223-230. |
| APA | Song, Ting.,Deng, Jing.,Deng, Liyuan.,Bai, Lu.,Zhang, Xiangping.,...&Daugaard, Anders E..(2019).Poly(vinylimidazole-co-butyl acrylate) membranes for CO2 separation.POLYMER,160,223-230. |
| MLA | Song, Ting,et al."Poly(vinylimidazole-co-butyl acrylate) membranes for CO2 separation".POLYMER 160(2019):223-230. |
入库方式： OAI收割
来源：过程工程研究所
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