Temperature dependence of transport coefficients and cooperativity in ionic liquids

摘要：

The temperature dependence of the molecular motion cooperativity in imidazolium-based room temperature ionic liquids with bis(trifluoromethane sulfonyl)imide anion, Rmim(CF3SO2)2N, where, R=e (ethyl), b (butyl), C6 (hexyl) and C8 (octyl), respectively, were evaluated by using a relation defined in the framework of the Bond Strength-Coordination Number Fluctuation (BSCNF) model. The degree of the cooperativity in ionic liquids was reflected in the quantity NB, which gave the number of structural units involved in the thermally activated viscous flow. It was shown that by using the BSCNF model together with the Nernst-Einstein and the Stokes-Einstein relations, NB was mutually related with the transport coefficients, i.e., viscosity, diffusion coefficient and ionic conductivity.

关键词： transport coefficients cooperativity ionic liquids

作者: Masahiro Ikeda Masaru Aniya

作者单位: Course of General Education, Natural Science, Applied Physics, Fukui National College of Technology. Department of Physics, Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-

会议类型: 国际会议

会议名称: The 3rd Asian Conference on Molten Salts and Ions Liquids 2011(第三届亚洲熔盐与离子液体会议)

会议地点: 哈尔滨

会议语种:英文

页码: 164-167

在线出版日期: 2011-01-06（万方平台首次上网日期，不代表论文的发表时间）