为促进学术交流，拓宽师生国际学术视野，材料科学与化学工程学院、科技处特邀请美国科罗拉多大学张伟教授来我校进行学术交流，并作专题学术讲座。欢迎校内师生参加讲座。
讲座题目：Unlocking Innovative Crystalline Polymer Architectures with Dynamic Covalent Chemistry
讲座时间：2025年5月16日（周五）15：30
讲座地点：哈尔滨理工大学南区5号楼212会议室
主讲人：张伟 教授
讲座内容：Dynamic covalent chemistry (DCvC) has proven to be highly effective toward the construction of well-defined molecular and polymeric architectures. The error-correction mechanism enabled by the reversible formation of dynamic covalent bonds leads to the formation of structurally ordered, thermodynamically favored species. One such example is the solvothermal synthesis of covalent organic frameworks (COFs) with periodic structural order and low defect density. The chemical compositions of such frameworks are usually well-defined and inter-monomer connectivity (covalent bonding) is robust. Bottom-up synthesis of covalently linked polymers through DCvC has many critical advantages, such as easy tunability of functional and structural properties in a controlled fashion through rational design of the precursors, formation of stable linkages, minimized structural defect, and possible access to sophisticated architectures that are hard to obtain otherwise. This talk will focus on our recent progress in the development of DCvC, particularly borate bond exchange. This powerful transformation enabled the bottom-up design and synthesis of novel structurally ordered polymer architectures, such as unprecedented single-crystal DNA-like helical covalent polymers (HCPs) and ionic covalent organic frameworks (ICOFs) that can achieve molecular recognition with resolution below 0.2 Å.
主讲人简介：张伟，博士、教授，美国科罗拉多大学化学系主任。2005年博士毕业于伊利诺伊大学香槟分校，此后在麻省理工学院（MIT）从事博士后研究，2008年就职于美国科罗拉多大学。主要从事基于动态共价化学材料在环境、能源和生物等领域的应用研究，包括碳捕获、分子分离、催化、储能以及自修复与可闭环回收等方面。获聘苏黎世联邦理工学院客座教授、吉林大学唐敖庆客座教授；并荣获科罗拉多大学教师成就奖、斯隆研究奖、CAPA杰出青年教师奖、3M青年教师奖、美国国家科学基金会职业奖、科罗拉多大学年度发明家奖等荣誉。2022年获美国化学会科罗拉多分会奖，2023年当选美国国家发明家科学院资深会员，2024年获科罗拉多大学学者奖。
材料科学与化学工程学院、科技处
2025年5月13日