化工进展 ›› 2016, Vol. 35 ›› Issue (10): 3196-3200.DOI: 10.16085/j.issn.1000-6613.2016.10.025

• 工业催化 • 上一篇    下一篇

氯化1-{2-[双(2-氨基乙基)氨基]乙基}吡啶离子液体的合成及在ATRP反应中的应用

张美美1, 薛腾1, 唐二军1,2, 袁淼1, 刘少杰1,2, 赵地顺1,2   

  1. 1 河北科技大学化学与制药工程学院, 河北 石家庄 050018;
    2 河北省药物化工工程技术中心, 河北 石家庄 050018
  • 收稿日期:2015-12-28 修回日期:2016-05-01 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: 唐二军,教授。E-mail:ejtang@sohu.com
  • 作者简介:张美美(1988-),女,硕士研究生。
  • 基金资助:
    国家自然科学基金(21304030)及河北省自然科学基金(B2013208183)项目。

Synthesis of 1-{2-[bis(2-aminoethyl)amino]ethyl} pyridinium chloride and its application in ATRP reaction

ZHANG Meimei1, XUE Teng1, TANG Erjun1,2, YUAN Miao1, LIU Shaojie1,2, ZHAO Dishun1,2   

  1. 1 Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China;
    2 Hebei Research Center of Pharmaceutical and Chemical Engineering, Shijiazhuang 050018, Hebei, China
  • Received:2015-12-28 Revised:2016-05-01 Online:2016-10-05 Published:2016-10-05

摘要: 采用N-烷基化方法将二乙烯三胺(DETA)接枝到氯化1-氯乙基吡啶离子液体[CePy]Cl上,合成了离子液体氯化1-{2-[双(2-氨基乙基)氨基]乙基}吡啶([N3Py]Cl),通过FTIR、1H NMR和MS等测试手段对合成离子液体的结构进行了表征。采用循环伏安法对离子液体配合物[N3Py]Cl/CuBr和有机配合物PMDETA/CuBr的氧化还原电位(E1/2)进行测试,结果表明:合成的离子液体[N3Py]Cl和CuBr形成配合物的氧化还原电势为E1/2=-0.541V,比常用的有机配合物PMDETA/CuBr(E1/2=-0.142V)具有更低的氧化还原电势。将离子液体[N3Py]Cl与CuBr配位形成催化体系,在离子液体[AMIM]Cl中催化甲基丙烯酸甲酯(MMA)的原子转移自由基聚合(ATRP)反应。结果表明,当配体、催化剂和溶剂的用量分别为n(CuBr)=0.19mmol、n([N3Py]Cl)=1.13mmol、n([AMIM]Cl)=0.02mol,反应温度60℃,反应时间4h时,单体转化率高达75%,分子量分布较窄(Mw/Mn=1.24),ATRP反应具有明显的可控性能。

关键词: 离子液体, 氧化还原电位, 配合物, 催化, 聚合

Abstract: Ionic liquid of 1-{2-[bis(2-aminoethyl)amino]ethyl} pyridinium chloride[N3Py]Cl was synthesized by grafting the diethylenetriamine(DETA)onto 1-chloro-ethyl pyridinium chloride ionic liquid[CePy]Cl through N alkylation. The structure of the ionic liquid was characterized by FTIR,1H NMR and MS. The redox potential(E1/2)of complex[N3Py] Cl/CuBr and PMDETA/CuBr was tested by cyclic voltammetry. The result indicated that the redox potential of[N3Py]Cl/CuBr was -0.541V,lower than that of PMDETA/CuBr(-0.142V). In addition,the atom transfer radical polymerization (ATRP)of MMA was catalyzed by ionic liquid[N3Py]Cl with CuBr in the ionic liquid[AMIM]Cl. The conversion of monomer was up to 75% with a narrow distribution of molecular weight(Mw/Mn=1.24)when the employed amount of the ligand,catalyst and solvent was n(CuBr)=0.19mmol、n([N3Py]Cl)=1.13mmol、n([AMIM]Cl)=0.02mol,respectively,with the reaction temperature of 60℃,and reaction time of 4h. The reaction presented the characteristic of living/controlled polymerization.

Key words: ionic liquids, redox potential, complexes, catalysis, polymerization

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