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Strategy of regulating the electrophilic/nucleophilic ability by ionic ratio in poly(ionic liquid)s to control the coupling reaction of epoxide

文献类型：期刊论文

作者Chen, Shengxin2,3; An, Ran2; Li, Yingwei1,2; Zhu, Yuting2,4; Zhu, XinBao4; Liu, Ruixia1,2; Li, Xingang3
刊名CATALYSIS SCIENCE & TECHNOLOGY
出版日期2021-08-10
页码9
ISSN号2044-4753
DOI10.1039/d1cy01024g
英文摘要Although poly(ionic liquid)s (PILs) have received extensive attention and research, the strategy for designing efficient PILs catalysts remains a challenge. This work reports a series of efficient PILs catalysts with increasing ionic ratio and various anion species to regulate electrophilic/nucleophilic ability, and explores the effect of the ionic ratio on the coupling reaction of propylene oxide (PO) with CO2 or methanol. These PILs are synthesized by a quaternization reaction between poly(N-vinylimidazole) (PVIM) and dihaloalkanes, where the amount of crosslinker of dihaloalkanes controls the ionic ratio of PILs, further affecting their microcosmic environment, morphologies and properties. It is noteworthy that the ionic ratio with IL units and imidazoline group can work as a trigger and promoter in the coupling reaction of PO with CO2 or methanol. The ionic ratio could open the reaction compared with the parent PVIM and the choice of anion could turn the reaction on or off. It suggested that the active microstructure and electrophilic/nucleophilic ability of PILs could be regulated by the ionic ratio. In these active sites, the IL units-connected imidazoline group could weaken the interaction of the cation-anion, giving enhanced leaving ability of the anion, contributing to the excellent catalytic performance.
WOS关键词EFFICIENT CO2 CAPTURE ; CYCLIC CARBONATES ; RADICAL POLYMERIZATION ; CATALYTIC PERFORMANCE ; CHEMICAL FIXATION ; DIOXIDE ; HYDROCHLORINATION ; CYCLOADDITION ; CONVERSION ; POLYMERS
资助项目National Natural Science Foundation of China[21878315] ; National Key Research and Development Program of China[2017YFA0206803] ; Key Programs of the Chinese Academy of Sciences[KFZD-SW413] ; Key Programs of Innovation Academy for Green Manufacture, CAS[IAGM2020C17] ; K. C. Wong Education Foundation[GJTD-2018-04] ; Major Program of National Natural Science Foundation of China[21890762]
WOS研究方向Chemistry
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000687743500001
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of Innovation Academy for Green Manufacture, CAS ; K. C. Wong Education Foundation ; Major Program of National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/49931]  
专题中国科学院过程工程研究所
通讯作者Liu, Ruixia; Li, Xingang
作者单位1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ionic Liquids Clean Proc, Inst Proc Engn,Innovat Acad Green Mfg,CAS Key Lab, Beijing 100190, Peoples R China
3.Tianjin Univ, Sch Chem Engn & Technol, Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China
4.Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Shengxin,An, Ran,Li, Yingwei,et al. Strategy of regulating the electrophilic/nucleophilic ability by ionic ratio in poly(ionic liquid)s to control the coupling reaction of epoxide[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021:9.
APA Chen, Shengxin.,An, Ran.,Li, Yingwei.,Zhu, Yuting.,Zhu, XinBao.,...&Li, Xingang.(2021).Strategy of regulating the electrophilic/nucleophilic ability by ionic ratio in poly(ionic liquid)s to control the coupling reaction of epoxide.CATALYSIS SCIENCE & TECHNOLOGY,9.
MLA Chen, Shengxin,et al."Strategy of regulating the electrophilic/nucleophilic ability by ionic ratio in poly(ionic liquid)s to control the coupling reaction of epoxide".CATALYSIS SCIENCE & TECHNOLOGY (2021):9.

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来源：过程工程研究所

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