It is known that traditional microemulsions are thermodynamically stable mixtures which are extensively applied in many fields. However, how to control emulsification and demulsification of microemulsions more flexibly in practical applications is still a challenge. In the present study, a new type of temperature-sensitive ionic liquid (IL) microemulsion [P₄₄₄₄][CF₃COO]/[C₁₂mim]Br/H₂O, composed of two ILs and water molecules, was designed. Compared with traditional microemulsions, this IL microemulsion was more sensitive to the small range of temperature. Thus, the reversible emulsification and demulsification process can easily be switched by using temperature as a trigger. To elucidate the demulsification mechanism of this temperature-sensitive IL microemulsion, a series of molecular simulations were performed at different temperatures. The simulation results indicate that the interaction between [CF₃COO]⁻ and H₂O is the driving force of demulsification process. In addition, the effect of [P₄₄₄₄][CF₃COO] and [C₁₂mim]Br concentration on the microstructure of microemulsion was investigated rigorously. The results demonstrate that contents of both the [P₄₄₄₄][CF₃COO] and [C₁₂mim]Br have an important influence on the demulsification behavior of IL microemulsion.

众所周知，传统的微乳液是热力学稳定的混合物，广泛应用于许多领域。然而，在实际应用中如何更灵活地控制微乳液的乳化和破乳仍然是一个挑战。在本研究中，一种新型的温度敏感离子液体（IL）微乳液[P ₄₄₄₄ ] [CF ₃ COO] / [C ₁₂ mim] Br / H ₂设计了由两个IL和水分子组成的O。与传统的微乳液相比，这种IL微乳液对较小的温度范围更敏感。因此，通过使用温度作为触发因素，可容易地切换可逆乳化和破乳过程。为了阐明这种对温度敏感的IL微乳液的破乳机理，在不同温度下进行了一系列分子模拟。仿真结果表明，[CF ₃ COO] ^-与H ₂ O的相互作用是破乳过程的驱动力。此外，[P ₄₄₄₄ ] [CF ₃ COO]和[C ₁₂严格研究了mim] Br浓度对微乳液微结构的影响。结果表明，[P ₄₄₄₄ ] [CF ₃ COO]和[C ₁₂ mim] Br的含量均对IL微乳液的破乳行为有重要影响。