1-癸基-3-甲基咪唑类离子液体的合成研究  

STUDY ON THE SYNTHESIS OF 1-DECYL-3-METHYLIMIDAZOLE IONIC LIQUIDS

作　　者：李英 武朋飞[1] 段瑞娟 景奇 张鑫 荆瑞俊 冯喜兰[2] 张裕平[2] 范顺利[1] LI Ying;WU Pengfei;DUAN Ruijuan;JING Qi;ZHANG Xin;JING Ruijun;FENG Xilan;ZHANG Yuping;FAN Shunli(School of Enviroment,Henan Normal University,Henan Key Laboratory of Environmental Pollution,Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control,Ministry of Education,Xinxiang 453007,China;School of Chemistry and Chemical Engineering,Henan Institute of Science and Technology,Xinxiang 453003,China)

机构地区：[1]河南师范大学环境学院河南省环境污染控制重点实验室黄淮水环境与污染防治省部共建教育部重点实验室,河南新乡453007 [2]河南科技学院化学化工学院,河南新乡453003

出　　处：《离子交换与吸附》2018年第4期307-314,共8页Ion Exchange and Adsorption

基　　金：国家自然科学基金(21307026);河南省基础与前沿技术研究计划项目(132300413209);河南省教育厅(2013GGJS-138;14B150019);河南科技学院高层次人才科研启动项目和标志性创新工程资助项目(No.2015BZ02)

摘　　要：以N-甲基咪唑和溴代癸烷为原料,通过一步合成法合成了1-癸基-3-甲基咪唑溴盐离子液体(DMImB r),然后经阴离子交换得到两种离子液体1-癸基-3-甲基咪唑四氟硼酸盐(DMImB F4)和1-癸基-3-甲基咪唑六氟磷酸盐(DMIm PF_6)。通过考察反应溶剂和反应时间对目标离子液体产率的影响,得出最优反应条件,在甲醇溶剂中分别反应5d和7d时,离子液体DMImB F_4和DMImPF_6的产率分别达80.7%和95.8%,离子液体的结构用红外和核磁技术进行了表征。Ionic liquid l-decyl-3-methylimidazolium bromide （DMlmBr） was synthesized by one-step immidiazium reaction between N-methylimidazole and bromodecane. The other two ionic liquids, including 1-decyl-3-methylimidazolium tetrafluoroborate （DMImBF4） and 1-decyl-3-methylimidazolium hexafluorophosphate （DMImPFd）, were obtained by anion exchange reactions between bromide and the corresponding tetrafluoroborate as well as hexafluorophosphate. Effects of solvent and reaction time on the products＇ yield were investigated. The best synthetic conditions of DMImBF4 and DMImPF6 were discussed. The results indicated the optimum reaction conditions for DMtmBF4 and DMImPF6 were obtained in the methanol solvent for 5d and 7d, and the yields were 80.7% and 95.8%, respectively. The structures of the ionic liquids were characterized by FT-IR and 1H NMR.

关 键 词：1-癸基-3-甲基咪唑离子液体 离子交换 条件优化 结构表征 

分 类 号：O647.316.2[理学—物理化学]