2023年10月17日耶鲁大学钟明江教授报告

报告题目：Diversifying Polymer Properties through Precision Microstructure Engineering

报告人：钟明江 助理教授（美国耶鲁大学）

主持人：吴丁财 教授

时  间：2023年10月17日，10：00-12:00

地  点：东校园化学与材料综合楼B407

报告摘要：

The material properties of polymers are strongly influenced by their microstructures, such as monomer sequence, architecture, and tacticity. This presentation introduces various precision synthesis methods to access microstructure-engineered homopolymers and copolymers with diversified properties. The presenter will first report the recent progress in his research group on the controlled synthesis and characterization of multicomponent bottlebrush block copolymers containing sequence-defined side chains. Hierarchically assembled nanostructures were constructed with broadly tunable characteristic lengths. The concept of precision synthesis will then be extended to the preparation of (hyper)branched polymers in the second part of the presentation. A site-specifically initiated living branching polymerization with controlled degree of branching was realized through a polymerization-induced radical generation process. Kinetic modeling and mechanistic studies were carried out to enhance the scalability and versatility of the branching polymerization. Finally, a bimetallic molecular catalyst used for stereocontrolled living radical polymerization will be introduced. The impact of backbone stereoregularity on the thermomechanical and thermo-responsive properties of the prepared polymers will be discussed.

主讲人简介：

钟明江，耶鲁大学环境化学工程系助理教授、化学系兼职教授。2008年获北京大学学士学位，2013年获卡耐基梅隆大学博士学位，师从ATRP开创者Krzysztof Matyjaszewski 教授和 Tomasz Kowalewski教授。在加入耶鲁大学以前，曾在麻省理工学院进行博士后研究工作，合作导师为Jeremiah Johnson教授和Bradley Olsen教授。目前，钟明江教授的研究领域涉及高分子化学、合成化学和材料化学等，主要致力于解决全球健康和可持续性方面的挑战。钟明江教授曾获得多个奖项，包括US National Science Foundation CAREER Award, Camille Dreyfus Teacher-Scholar Award, 3M Non-Tenured Faculty Award，ACS PMSE Young Investigator。钟明江教授已在Science，Nat. Mater., Nat. Commun., Chem. Rev., J. Am. Chem. Soc., Angew. Chem. Int. Ed.等杂志发表论文80余篇，论文被引用6000余次；已申请和授权多项美国专利。