报告题目：可控RAFT及多肽聚合新进展
报告内容简介：This seminar will present our recently developments in two fronts. One is on the developments of new radical polymerization methods by using traditional RAFT agents. Recent advances and modifications to the traditional reversible addition-fragmentation chain transfer (RAFT) have developed new chemistries for controlled chain growth structures with three main aspects: 1) the addition of a photoredox catalyst to reduce RAFT agents via an electron transfer, from which subsequent fragmentation of the RAFT agent can induce a radical polymerization;1 2) the direct photoactivation of trithiocarbonate (TTC) RAFT agents – either via UV2 or visible light irradiation3 – to directly fragment the weak C-S bond and activate a radical polymerization; and 3) the use of a cationizable RAFT agent to exert control over a degenerative chain transfer cationic polymerization of unconjugated monomers.4 These advances differ markedly in their methods and implications from traditional RAFT radical polymerization. The 1st half of seminar will demonstrate that visible light irradiation of TTCs can effectively induce photo-controlled radical polymerization processes without the aid of any additional radical (photo)initiators or catalysts.3 It will further demonstrate that an organic tertiary amine catalyst (TAC) and the same TTC synergistically photo-induced radical polymerization of methacrylates under mild UV irradiation, in the absence of conventional photo-initiators, with low molecular weight distributions and excellent end-group fidelity (> 95%).5 The 2nd part of the seminar will update our recent advances in the synthesis of polypeptide-based and other biomacromolecular architectures and their applications in the biological systems. It will describe a recently developed nano-engineered surface modification method, e.g. the continuous assembly of polymers (CAP), which can be applied to create target surface properties for specific bio-interactions. It will also introduce our latest developments on nano-engineered polypeptide architectures and their potential applications as antimicrobial agents for killing bacteria and bio-inspired polypeptide shells.
报告人姓名：Greg G. Qiao
报告人简介(中文)：GREG G. QIAO，澳大利亚墨尔本大学化学与生物分子系教授，工程学院的副院长。1982年曾任东华大学纺织化学工程系研究助理。1992年至1995年在澳大利亚昆士兰大学任职。1996年至今一直在墨尔本大学任职，期间聘为教授。1990年至2006年任澳大利亚皇家化学会(RACI)会员，之后任RACI研究员，现任聚合物部门主席。2002年至2005年期间任美国化学会(ACS)会员。2012年起，担任澳大利亚化学杂志(AJC)的副主编。先后荣获由澳大利亚化学工程师协会、澳大利亚皇家化学会以及澳大利亚工程授予的Freehills奖、合成高分子化学突出贡献奖，埃克森美孚化工卓越奖等。主要研究的兴趣包括：新型结构高分子的合成、聚合物气体分离膜、软组织工程用生物大分子支架以及功能聚合物的工业应用。在Angew. Chem., Small, ACS Nano、Macromolecules等著名期刊上发表学术论文160余篇。
报告人单位：澳大利亚墨尔本大学
报告时间：2015-11-13 13:00
报告地点：东区材料楼520
