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

过渡金属催化烯烃聚合：机理研究和催化剂设计

• 批准号: 9412095
• 负责人: Maurice Brookhart
• 金额: $ 36.45万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-15 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9412095&HistoricalAwards=false
• 关键词: Transition; Metal; Catalyzed; Olefin; Polymerizations

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.

北卡罗来纳州-查珀尔山布鲁克哈特大学查佩尔山北卡罗来纳州化学系的莫里斯·布鲁克哈特博士得到了无机、生物无机和有机化学项目的支持，对金属催化的烯烃聚合和低聚进行了研究。将确定金属沿沿着烷基链迁移的能量学，将开发用于制备末端官能化聚乙烯的方法，并且将使用先前确定的钴催化剂制备高度官能化的聚乙烯。将制备基于阳离子烯丙基络合物的新型镍和钯催化剂以及高选择性铑催化剂用于生产官能化聚乙烯。 一些最高体积的商业聚合物是从烯烃的聚合获得的。大多数商业催化剂基于出现在周期表左侧的金属。本研究针对图表中间的金属，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，用于改进具有各种性能的塑料的生产。