2015/12/24 上午10:24:28 星期四
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学术报告预告

  

题目:Synthesis and Application of Functional Polymers with Hierarchical Nanostructures

报告人:Haifeng Gao   University of Notre Dame, Indiana

时间:65 (周四)14:30

地点:学术交流中心第三报告厅

 

报告摘要:

This presentation discussed our recent progress on developing new strategies to synthesize functional polymers and their applications in gene delivery and CO2 capture. Functional polymers with uniform size, hierarchical structure and tunable compositions can find broad applications in different areas.1 We applied controlled radical polymerizations in nanometer-sized confined space, such as micelles in a microemulsion, and successfully regulated the polymerization behavior of different functional monomers. The developed facile synthetic techniques include: 1) one-step synthesis of hyperbranched polymers with uniform structure and high molecular weights,2 2) one-pot synthesis of crosslinked polypyrrole nanoparticles.3-5 The former hyperbranched polymers with thousands of preserved initiating sites were used as multifunctional initiators for surface polymerization. The produced hairy nanoparticles with core-shell structures and dimension of 100 nm showed promising properties as carriers for siRNA delivery. The polypyrrole nanoparticles with high nitrogen content could further assemble into porous organic materials with different pore distributions, which is a promising material for CO2 uptake.

 

 

报告人简介:

Dr. Haifeng Gao is an Assistant Professor at Department of Chemistry & Biochemistry, University of Notre Dame. He obtained his B.S. and M.S. at Fudan University (China) in 2000 and 2003 in Professor Shoukuan Fu’s group. In 2004, he joined Professor Krzysztof Matyjaszewski's research group at Carnegie Mellon University and obtained his doctorate in December 2008. In January 2009, he joined the research group of Professor Jean M. J. Frechet at the University of California, Berkeley as a postdoctoral researcher, working on polymeric materials with applications including catalysis and energy conversion. Dr. Gao's research focuses on the design and synthesis of functional polymers with controlled nanostructures by determining of their fundamental structure-property relationships. These materials will meet critical needs in the fields of environmental remediation, energy conversion and biofunctional materials. Dr. Gao has co-authored 50 peer-reviewed papers, 4 book chapters and is the recipient of 1 US patent. His publications so far have been cited for more than 3000 times and his current H-index is 29.

(1).  Gao, H. Macromol. Rapid Commun. 2012, 33, 722.

(2).  Min, K.; Gao, H. J. Am. Chem. Soc. 2012, 134, 15680.

(3).  Lee, D.; Zhang, C.; Wei, C.; Ashfeld, B. L.; Gao, H. J. Mater. Chem. A 2013, 1, 14682.

(4).  Lee, D.; Zhang, C.; Gao, H. Macromol. Chem. Phys. 2014, 215, 669.

(5).  Zhang, C.; Wang, X.; Min, K.; Lee, D.; Wei, C.; Schulhauser, H.; Gao, H. Macromol. Rapid Commun. 2014, 35, 221.