New hydrophobic ionic liquids consisting of trialkyl(2-methoxyethyl)ammonium ([R1R2R3NCH2CH2OCH3]+, R1, R2, R3 = CH3 or C2H5) cation and perfluoroethyltrifluoroborate ([C2F5BF3]−) anion were prepared by neutralization of aq. [R1R2R3NCH2CH2OCH3][OH] with aq. H[C2F5BF3]. The new [C2F5BF3]−-based ionic liquids show much lower melting points and viscosities (58–86 cP at 25 °C), hence higher ionic conductivities, than the [BF4]−-based ones.
通过用 H[C2F5BF3]中和[R1R2R3NCH2CH2O ][OH]等离子,制备了由三烷基(2-甲氧基乙基)
铵([R1R2R3NCH2CH2O ]+,R1、R2、R3 =
CH3 或
C2H5)阳离子和
全氟乙基三
氟硼酸盐([C2F5BF3]-)阴离子组成的新型疏
水性
离子液体。与基于[BF4]的
离子液体相比,基于[C2F5BF3]的新型
离子液体显示出更低的熔点和粘度(25 °C 时为 58-86 cP),因此离子电导率更高。