周惠久论坛——Topological Engineering of Giant Molecules toward Unconventional Structures and Functions

讲座名称: 周惠久论坛——Topological Engineering of Giant Molecules toward Unconventional Structures and Functions
讲座时间: 2018-06-11
讲座人: 程正迪
形式:
校区: 兴庆校区
实践学分:
讲座内容: 讲座时间:2018年6月11日上午10:00-12:00 讲座地点:新材料大楼材料学院第一会议室 讲座人:  程正迪院士 讲座主题:Topological Engineering of Giant Molecules toward Unconventional Structures and Functions 讲座内容: Inverse design and inverse thinking are critical steps in the materials genome approach. When we design materials with specific functional properties, we often start with independent building blocks which possess well-defined molecular functions and precise chemical structures. Using “Lego” type of modules, we can then assemble such elemental building blocks together in preferred secondary structures (or packing schemes) to construct materials possessing topologically mandated hierarchical structures with desired functions. In this talk, a unique approach along this design and thinking path will be presented. Various “giant molecules” based on “nano-atoms” are designed and synthesized. “Nano-atoms” refer to shape-persistent molecular nanoparticles (MNPs) such as fullerenes, polyhedral oligomeric silsesquioxanes, polyoxometalates, and folded globular proteins. These “nano-atoms” possess precisely-defined chemical structures, surface functionalities and molecular shapes, serving as elemental units for the precision synthesis of “giant molecules” by methods such as click chemistry and other efficient chemical transformations. These “giant molecules” include, but are not limited to, giant surfactants, giant shape amphiphiles, and giant polyhedra. These “giant molecules” can assemble into diverse higher order building blocks to further construct the thermodynamically stable and metastable hierarchical structures in the bulk, thin-film, and solution. Unconventional nanostructures can be obtained in various environments via sequence/topology mandated assemblies to exhibit specifically desired properties. This approach has provided a versatile platform for engineering nanostructures that are not only scientifically intriguing, but also technologically relevant. 主办单位: 材料学院 金属材料强度国家重点实验室 国际合作交流处 该项目受国家外专局国际知名学术大师校园行项目资助
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