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采用酸碱中和法合成了醋酸乙醇胺离子液体(EOAA),在298.15 K时,测定了全浓度范围内EOAA/水、EOAA/DMSO以及EOAA/正丁醇3种二元溶液的粘度和电导率。结果表明,3种溶剂都能明显地降低离子液体的粘度,并且粘度偏差Δη均为负值。随着离子液体物质的量分数增加,溶液电导率的变化呈现先增加后减小的趋势。同时,对比了3种溶剂的异同。结果显示,介电常数较大的溶剂对离子液体的粘度及电导率的影响更加显著。此外,分别采用RedlichKister和Castell-Amis方程对溶液的粘度偏差及电导率进行了拟合关联。
Acetic acid ethanolamine ionic liquid (EOAA) was synthesized by acid-base neutralization method. The viscosity and conductivity of three binary solutions of EOAA / water, EOAA / DMSO and EOAA / n-butanol were measured at 298.15 K . The results show that all three solvents can significantly reduce the viscosity of the ionic liquid, and the viscosity deviation Δη is negative. With the increase of ionic liquid mass fraction, the conductivity of solution shows a trend of first increasing and then decreasing. At the same time, compared the similarities and differences between the three kinds of solvents. The results show that the greater the dielectric constant of the solvent on the ionic liquid viscosity and conductivity more significantly. In addition, the viscosity deviation and conductivity of the solution were fitted and correlated using the RedlichKister and Castell-Amis equations respectively.