作者:Kallidanthiyil Chellappan Lethesh、Wim Dehaen、Koen Binnemans
DOI:10.1039/c3ra45126g
日期:——
Ionic liquids with the bis(2-ethylhexyl)dimethylammonium cation, [BEDMA]+, were prepared by a halide-free route starting from the readily available secondary amine bis(2-ethylhexyl)amine. The following anions were considered: chloride, bromide, iodide, nitrate, hydrogensulphate, dihydrogenphosphate, formate, acetate, propionate, trifluoroacetate, methyl sulphate, methanesulphonate, tosylate, isonicotinate
具有双(2-乙基己基)二甲基铵阳离子,[BEDMA] +的离子液体从容易获得的仲胺双(2-乙基己基)胺开始,通过无卤化物的路线制备α-,β-,β-,β-,β-,β-,β-。考虑以下阴离子:氯离子,溴离子,碘离子,硝酸根,硫酸氢根,磷酸二氢根,甲酸根,乙酸根,丙酸根,三氟乙酸根,硫酸甲酯,甲磺酸根,甲苯磺酸根,异烟酸根,烟酸根和吡啶甲酸根。尽管具有高粘度,但其中一些化合物是室温离子液体。所有离子液体都可溶于水。离子液体在强碱性介质中非常稳定。即使在80°C下长时间加热,氯化物离子液体与50 wt%氢氧化钠接触也未观察到分解迹象。对强碱的高稳定性归因于季铵阳离子的支链结构,