项目名称: 基于自组装技术的功能化磁性复合材料制备及其分离手性化合物的研究
项目编号: No.21506147
项目类型: 青年科学基金项目
立项/批准年度: 2016
项目学科: 有机化学
项目作者: 邓小娟
作者单位: 天津大学
项目金额: 21万元
中文摘要: 高效、快速的手性分离技术研究是一项重要而具有挑战性的工作。磁性纳米颗粒具有高的比表面积和独特的磁学性质,因而在手性分离领域显示出巨大的应用潜力。本研究拟以磁性纳米颗粒作为载体,从分子设计角度出发,制备能提供多种活性基团作用点的功能化磁性纳米复合材料和手性选择剂;利用自组装技术将不同手性选择剂分子负载在功能化磁性纳米材料表面,并通过多种表征与测试手段,系统考察该材料对手性分离的增强作用,阐明材料结构与性能关系;构建手性分离体系,以手性化合物为分析对象,对自组装型功能化磁性复合材料的分离性能进行对比分析与评价,研究反应动力学和热力学过程,探讨手性识别机理。基于磁性纳米颗粒和分子自组装技术的手性分离体系将明显提高分离速度和容量,为建立快速、高效的手性分离方法提供科学依据。
中文关键词: 磁性复合材料;分子自组装;手性分离
英文摘要: The development of more rapid and effective enantioseparation techniques is important and challenged. Magnetic nanoparticles with large surface-to-volume ratio and special magnetism property have demonstrated great potential in chiral discrimination. This study intends to utilize magnetic nanomaterials immobilized with an appropriate chiral selector for enantioseparation. Firstly, functionalized magnetic nanomaterials and chiral selectors with various active groups are prepared. Secondly, chiral selectors are anchored onto the surface of the functionalized magnetic nanomaterials by means of self-assembly. The relationships between nano structure and the property are investigated by various characterized methods. Lastly, these chiral magnetic nanomaterials are used as adsorbents for enantioselective separation. The chiral recognized mechanisms are studied. To conclude, a rapid and effective method is developed for enantioseparation using magnetic nanoparticles as separator with self-assembled chiral selectors.
英文关键词: magnetic composites;molecular self-assembly;enantioseparation