聚合物/（功能化氨基酸离子液体@聚合物（核-壳）复合纳米微球）混合基质膜的构筑及其CO2分离性能研究

在化工、能源与环境等相关领域，采用膜技术规模化分离捕集CO2已成为重要的化工过程。目前，CO2分离膜的发展已明显滞后于工业需求。本课题基于混合基质膜的特点，以保留功能化氨基酸离子液体的优异CO2分离性能为前提，首先构筑包覆氨基酸离子液体的复合纳米微球，进而制备新型的聚合物/（氨基酸离子液体@聚合物（核-壳）复合纳米微球）混合基质膜材料与复合膜。探索复合纳米微球包覆氨基酸离子液体的具体技术与方法；分析复合纳米微球对CO2在膜中的渗透性与选择性的影响与内在联系；深入研究具有理想型单微球层分离皮层的混合基质复合膜的制备方法。课题为进一步开发氨基酸离子液体类溶解选择型以及促进传递型CO2分离膜提供了有效途径，在基础理论研究和实际应用领域都具有重要价值与意义。

The scale remove of CO2 by membrane technology is the important chemical engineering process in chemical, energy and environmental fields. Currently, the development of the membranes for CO2 separation are obviously lagging behind the industrial demands. In this proposal, according to the characteristics of the mixed matrix membranes, aiming to retain the excellent CO2 separation properties of task-specific amino acid ionic liquids, we prepare the composite nanoparticles with amino acid ionic liquids encapsulated at first, and then fabricate the novel polymer/(amino acid ionic liquids@polymer core-shell composite nanoparticles) mixed matrix membrane materials and composite membranes. The specific method and technology of the composite nanoparticles encapsulating amino acid ionic liquids are investigated. The effects of incorporating the nanoparticles into the membranes on CO2 permeability and selectivity are investigated. The methods of preparing the composite membranes with ideal-single-nanoparticles separating layer are discussed. It provides an effective way to research and explore the solubility-selectivity and facilitated membranes containing amino acid ionic liquids for CO2 separation. It displays the important value and significance in the research of basic theory and the practical applications.