Ionic Liquids in Fluid Applications

Jean'ne M.爱达荷州大学化学系的Shreeve受到无机、生物无机和有机化学计划的支持，合成和研究含有全氟烷基或多氟烷基醚基团的新型离子液体。咪唑鎓、三唑鎓和四唑鎓阳离子将用各种强烷基化剂处理以提供单-、二-和多-全氟烷基化离子液体。多齿中心或模板，包括磷腈、三嗪、大环胺、联吡啶和聚合的磷腈和吖嗪也将被全氟烷基化或多氟烷基化以得到新型氟化离子液体。氟化离子液体具有较高的密度、较好的热稳定性、较好的抗氧化性和可控的粘度，是一种很有吸引力的溶剂，可以替代挥发性有机化合物。离子液体的理想性质包括宽的有用温度范围、低蒸气压、热稳定性和化学稳定性以及可调的粘度和密度。它们还被用作低温/高温流体，极端环境中的润滑剂以及燃料电池中的电解质。该项目将开发一类新型含氟离子液体。本科生，研究生和博士后研究人员将学习宝贵的技术技能，并获得实验设计和新材料应用到真实的世界需求的经验。 该项目还支持对两年制和四年制大学教师的外联工作。

Jean'ne M. Shreeve, Department of Chemistry, University of Idaho, is supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program to synthesize and study new ionic liquids containing perfluoroalkyl or polyfluoroalkyl ether groups. Imidazolium, triazolium and tetrazolium cations will be treated with various strong alkylating agents to provide mono-, di- and poly-perfluoroalkylated ionic liquids. Polydentate centers or templates, including phosphazenes, triazines, macrocyclic amines, bipyridines and polymeric phosphazenes and azines will also be perfluoro- or polyfluoroalkylated to give new types of fluorinated ionic liquids. The fluorinated ionic liquids are expected to have higher densities, higher thermal stabilities, higher oxidation resistance and controlled viscosities than current non-fluorinated ionic liquids.Ionic liquids, or molten salts, are attractive alternatives to volatile organic compounds as solvents. The desirable properties of ionic liquids include a wide useful temperature range, low vapor pressure, thermal and chemical stability with tunable viscosity and density. They are also being explored as low/high temperature fluids, lubricants in extreme environments and as electrolytes in fuel cells. This project will develop a new class of fluorinated ionic liquids. Undergraduate, graduate student and postdoctoral researchers will learn valuable technical skills and gain experience in experimental design and application of new materials to real world needs. This project also supports outreach efforts to two-year and four-year college faculty.