新型功能化离子液微乳液的形成、性质以及应用探索研究

项目名称： 新型功能化离子液微乳液的形成、性质以及应用探索研究

项目编号： No.21273235

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 高艳安

作者单位： 中国科学院大连化学物理研究所

项目金额： 82万元

中文摘要： 构建具有特殊功能的微乳液聚集体是胶体与界面化学界追求的目标之一。离子液体是一类具有诸多优异物理化学性质及功能的新型介质。利用功能化离子液体来制备新型的微乳液体系具有重要的理论意义和实际应用价值。本项目将利用低临界溶液温度（LCST）的温敏性离子液体来构建功能化离子液微乳液体系。根据温度调控LCST型离子液体与水之间单相/两相变化的原理，实现温度诱导的开关型离子液微乳液在微乳液/胶束或微乳液/真溶液之间的转变。探索这种对温度刺激具有响应性的智能型微乳液的形成规律和机理。通过相行为观察、光谱、电化学测定等手段研究微乳液的微观结构和性质以及这些性质与温度、离子液体和表面活性剂结构等因素的关系，揭示这类功能化微乳液的可逆转变规律，并进一步探索这类聚集体在萃取分离领域的应用。开展该课题有利于促进胶体与界面科学、绿色化学领域相互交叉渗透，并拓宽离子液体以及微乳液的应用范围。

中文关键词： 微乳液；离子液体；自组装；两亲分子；形成机理

英文摘要： Building novel self-assemblied microemulsion with special functions is one of the aims in the field of colloid and interface chemistry. Ionic liquids have been attracting much attention as a class of new media because of their special physicochemical properties. Therefore，it is of great significance to prepare a microemulsion with functionalized ionic liquids invloved theoretically and practically.In this proposal, we will use a series of ionic liquids with lower critical solution temperature（LCST）to replace traditional organic solvents to prepare functionalized ionic liquid microemulsions, which is based on the fact that temperature can reversibly drive the phase separation between LCST type ionic liquid and water, as such microemulsion can be switched by temperature. We will focus on studying the formation and mechanism of such thermo-stimuli microemulsions and investigating the microstructure and properties by various technologies. Moreover,the effect of temperature, ionic liquid and surfactant type on the microemulsion properties will also be studied. It is also proposed to study the transition process of microemulsion by temperature stimuli. It is expected that such microemulsions may be applied in extraction and separation process. The proposed project will benefit the overlap between colloid and interface

英文关键词： microemulsion；ionic liquid；self-assembly；amphiphile；formation mechanism