Transition Metal-Catalyzed Olefin Polymerizations: Mechanistic Studies and Catalyst Design

9412095北卡罗来纳大学布鲁克哈特分校-教堂山分校化学系莫里斯·布鲁克哈特博士由无机化学、生物无机化学和金属有机化学项目资助，研究金属催化的烯烃聚合和齐聚反应。将确定金属沿烷基链迁移的能量学，将开发制备末端官能化聚乙烯的方法，并将使用先前已确定的钴催化剂制备高度官能化聚乙烯。基于阳离子烯丙基络合的新型镍和钯催化剂以及高选择性的铑催化剂将被用于生产功能化聚乙烯。一些产量最大的商业聚合物是通过烯烃聚合获得的。大多数商用催化剂都是以元素周期表左侧的金属为基础的。这项研究针对的是图表中间的金属，因为这些金属与各种烯烃更相容，这将允许设计新的催化剂，以改进具有各种性质的塑料的生产。

9412095 Brookhart University of North Carolina - Chapel Hill Dr. Maurice Brookhart, Chemistry Department, University of North Carolina - Chapel Hill, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program for an investigation into the metal catalyzed olefin polymerizations and oligomerizations. The energetics of metal migration along alkyl chains will be determined, methods will be developed for the preparation of terminally functionalized polyethylene, and highly functionalized polyethylene will be prepared using previously identified cobalt catalysts. New nickel and palladium catalysts, based on cationic allyl complexed, and highly selective rhodium catalysts will be prepared for the production of functionalized polyethylene. Some of the highest volume commercial polymers are obtained from the polymerization of olefins. Most commercial catalysts are based on metals which occur on the left side of the periodic chart. This study is aimed at metals in the middle of the chart since these metals are more compatible with a wide variety of olefins which will permit the design of new catalysts for the improved production of plastics with a wide range of properties.