Fletcher Kristin A, Pandey Siddharth
Langmuir. 2004 Jan 6;20(1):33-6. doi: 10.1021/la035596t.
On the basis of the response of solvatochromic probes [Reichardt's betaine dye, pyrene, and 1,3-bis(1-pyrenyl)propane], we have investigated the aggregation behavior of common anionic, cationic, and nonionic surfactants when solubilized within a low-viscosity room-temperature ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (emimTf2N). We observed possible aggregate formation by all nonionic surfactants included in the study (Brij-35, Brij-700, Tween-20, and Triton X-100), while no aggregation was observed for the cationic surfactant cetyltrimethylammonium bromide. The anionic surfactant sodium dodecyl sulfate does not appear to solubilize within emimTf2N at ambient conditions.
基于溶剂化显色探针（赖卡特甜菜碱染料、芘和1,3 - 双（1 - 芘基）丙烷）的响应，我们研究了常见阴离子、阳离子和非离子表面活性剂在低粘度室温离子液体1 - 乙基 - 3 - 甲基咪唑双（三氟甲基磺酰）亚胺（emimTf2N）中溶解时的聚集行为。我们观察到研究中包含的所有非离子表面活性剂（Brij - 35、Brij - 700、吐温 - 20和Triton X - 100）都可能形成聚集体，而阳离子表面活性剂十六烷基三甲基溴化铵未观察到聚集现象。在环境条件下，阴离子表面活性剂十二烷基硫酸钠似乎不会在emimTf2N中溶解。
