报告题目：Engineering Polymer Single Crystals for Functional Nanomaterials
报告人：Christopher Y. Li（李育人）教授（Drexel University）
报告时间：2015年5月29日（周四）下午3：00
报告地点：独墅湖校区907号楼1101报告室
欢迎广大师生踊跃参加
报告内容：
Seventy five years after Storks reported gutta-percha single crystals obtained by casting thin films from dilute chloroform solution, and suggested a possible chain folding mechanism in polymer crystallization, a library of beautiful polymer single crystals (PSCs) has been grown in the lab. Unfortunately, compared with the fast growing metallic or semiconducting nanoparticles, PSCs lack functions and they are often used as the “model” system to determine polymer crystal structures. In this presentation, I will discuss our recent efforts on designing and growing functional PSCs by using tailor-made polymers, and by controlling chain folding upon crystallization. The functional groups of the polymer can be precisely located on lamellar surface. The resultant “sticky” surface can then be used to selectively immobilized nanoparticles to form nanoparticle-PSC nanosandwiches. This unique nanoensemble is highly functional; possible applications range from surface enhanced Raman, artificial nanomotor, to drug/gene delivery. It also enables facile synthesis of asymmetrically functionalized hairy nanoparticles. Biomimetic mineralization can also be achieved when combining block copolymer single crystals and 1D nucleation.
Christopher Y. Li（李育人）教授简介：
Christopher Y. Li教授主要从事高分子物理和材料方面的研究，目前为美国Drexel University终身教授，美国物理学会会士（American Physical Society Fellow）。1991-1995，中国科技大学，本科；1995-1999，美国阿克伦大学（The University of Akron）高分子科学与工程系，博士；2000-2001，阿克伦大学高分子科学与工程系博士后研究员；2002-2007，Drexel University材料科学与工程系助理教授（Assistant Professor）；2007-2011，Drexel University材料科学与工程系副教授（Associate Professor）；2011-迄今，Drexel University材料科学与工程系教授。在顶级国际期刊Nat. Mater., Nat. Nanotechnol., J. Am. Chem. Soc., Adv. Mater., Phys. Rev. Lett., Macromolecules等杂志发表学术论文90多篇，参与撰写专著9本，文章被引用次数超过3000次，H因子28。培养博士毕业生8人，硕士毕业生12人。获各种奖励19项。为Nature、Nature Materials等杂志审稿人，受邀举办学术讲座80余次。其工作被NSF, American Chemical Society, Materials Research Society, Physical Review Focus等杂志或媒体报道。于2003年获得美国的NSF-CAREER Award，2006年获得中国的海外杰青，2011年获得NSF Creativity Award，2012年当选为美国物理学会会士。
联系人：屠迎锋
