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Tennessee大学Brian Long教授学术报告(2017-05-24)

( 2017-05-24 )
Redox-Active Ligands: An Advanced Tool for Catalytic Olefin & Lactide Polymerizations

Abstract:
The ability to provide ultimate control over catalytic activity, selectivity, and reactivity for transition-metal mediated polymerizations remains a prominent challenge within the fields of organic, organometallic, and polymer chemistry. To address this challenge head-on, our research group has chosen to examine redox-active ligands as an effective means by which enhanced polymerization control may be realized through simple in situ changes in a catalyst's oxidation-state. Toward this goal, two studies will be presented that demonstrate the potential power of using redox-active catalysts for polymerizations. First, a study will be presented demonstrating that catalyst/ligand geometry, as well as redox-active moiety proximity to the active transition-metal center, plays a vital role in the transition-metal mediated polymerization of lactide to yield biodegradable polymers. Second, fundamental results will be described in which redox-active olefin polymerization catalysts were effectively used to modulate polyethylene microstructure and tailor comonomer incorporation.

Brian Long

Assistant Professor
University of Tennessee, Knoxville

 

Brief CV:
Cornell University, Postdoc 2009-2011
University of Texas at Austin, Ph.D. 2009
North Georgia College & State University, B.S. 2004
 
 
 
报告时间: 017年5月24日(星期三)下午3:30
报告地点: 科大东区资源环境楼报告厅
 

 
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