超两亲分子稳定的凝胶乳液及其在多孔材料模板制备中的应用

Oil contamination through water system has become a serious and worldwide problem as it causes irrecoverable damage to human health via the eco-system. Therefore, exploration of methods and materials which can be used for the elimination of the pollutants in an efficient and practical way is of great importance. In this project, we will try to develop some new superamphiphiles and use them as stabilizers to create gel-emulsions, then use them as templates for the preparation of porous organic materials, and then the materials as prepared will be tested for oil-water separation. It is believed that this kind of effort will be valuable for solving the problems as described. Superamphiphiles are chosen as potential stabilizers of the gel-emulsions to be created because which could be formed via utilization of dynamic covalent bond and avoids tedious chemical synthesis. In addition, the superamphiphiles are expected to functioning not only as the stabilizers of the gel-emulsions but also the surface modifying agents of final porous materials. Based upon the porous materials, we will try further to explore their potential applications in oil-water separations, especially separation of emulsified oils. We do believe that research relevant to the establishment of present project is of interdisciplinary characteristics, and is favorable for the remediation of crude oil and petroleum products contaminated water. However, principles of physical chemistry will play key roles in the process.

油水污染已成为日益严重且普遍存在的社会问题，对人类健康及生态环境造成严重危害，建立绿色方便、高效廉价的方法治理油水污染对人类生存和经济发展具有重要意义，迫切需要开发能够有效收集和清除水中有机污染物的吸附分离材料。本项目将超两亲分子作为稳定剂制备凝胶乳液，以其为模板制备多孔材料，并探索其物理化学性质和在油水分离中的应用。具体拟选取含可反应基团的化合物通过动态共价键构筑多种具有不同拓扑结构及功能性质的超两亲分子，规避复杂的化学合成，并使其兼具凝胶乳液稳定剂和多孔材料表面改性剂的双重作用，提出超两亲分子结构对凝胶乳液稳定性和多孔材料表面润湿性、力学性能之间的普适性规律，探索其在油水分离中的应用，尤其对乳化油的分离进行深入研究。相信深入研究油水界面膜自组装机理和多孔材料的油水分离作用机制将拓展为物理、化学和材料学科的交叉研究领域，为发展治理油水污染的新方法奠定理论基础和科学支撑。

含油类及有机污染物废水的排放，对生态环境及人类健康造成严重危害。发展一种清洁有效、方便实用的方法处理污染物依然是科学家面临的挑战。然而传统的吸油材料由于油水选择性差、对油的回收效果不好以及无法多次重复使用等缺点而限制其应用。以凝胶乳液为模板制备多孔材料成本低、可放大制备并能通过适当改性得到多功能材料。按照申请书所提出的研究任务，本项目设计合成了一系列基于可逆共价键组装的超两亲分子，将其作为稳定剂得到的凝胶乳液为模板制备多孔材料，该材料具备了疏水亲油性、高弹性低密度、可重复使用等优点，并研究了其在油水分离领域的应用。提出了超两亲分子结构对凝胶乳液稳定性和多孔材料表面润湿性、力学性能之间的普适性规律，考察了孔结构的调控规律及其对吸油性能和力学性能的影响规律，并实现了材料的可循环使用。在该基金的资助下，发表研究论文5篇，申请发明专利1项，培养硕士研究生4名，其中1名已获得硕士学位。