In this paper, the physicochemical properties of a new series of ionic liquids (ILs) based on nitrile-functionalised imidazolium cations ([C2CN Cnim]+) with sulfonate-based anions were studied. The ILs were prepared by reacting imidazole with acrylonitrile, followed by butyl- and decyl bromide. The anions of the resulting bromide salts exchanged by metathesis to dioctylsulfosuccinate (DOSS), dodecylsulfate (DDS), benzenesulfonate (BS) and trifluoromethanesulfonate (TFMS). The densities of these ILs are lower compared to the those of other reported nitrile-functionalised ILs, while on the other hand, the viscosities of the ILs are higher due to the effects of the large anions and the long alkyl chain of the cations.
在本文中,研究了一系列基于腈功能化
咪唑阳离子([C2CN Cnim]+)与
磺酸盐阴离子的
离子液体(ILs)的物理
化学性质。这些
离子液体通过
咪唑与
丙烯腈反应制备而成,随后与丁基
溴和
癸基溴反应。所得
溴化盐的阴离子通过离子互换反应被置换为二辛基磺酰
琥珀酸盐(
DOSS)、
十二烷基
硫酸盐(
DDS)、
苯磺酸盐(BS)和三
氟甲基磺酸盐(T
FMS)。这些
离子液体的密度与其他已报道的腈功能化
离子液体相比较低,而另一方面,由于大阴离子和阳离子的长烷基链的影响,这些
离子液体的粘度较高。