Can Catalysts Dance? Catalytic Choreography in Olefin Polymerization

催化剂能跳舞吗？

• 批准号: 0910729
• 负责人: Robert Waymouth
• 金额: $ 56.7万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0910729&HistoricalAwards=false
• 关键词: Catalysts; Dance; Catalytic; Choreography; Olefin

The Organic and Macromolecular Chemistry Program in the Chemistry Division at the National Science Foundation supports Professor Robert M. Waymouth of Stanford University who proposes studies to devise new kinetic strategies for the catalytic conversion of olefins into high-value materials and chemical intermediates. Specific aims are to develop synthetic strategies to generate polyolefins of defined sequence distribution and to generate new classes of telechelic oligomers derived from readily available olefin feedstocks. Specific intellectual gains anticipated from the proposed work include: (1) an understanding of the role of conformational dynamics to generate "smart" catalysts that can access multiple kinetic states, (2) an understanding of the necessary and sufficient criteria for chain-shuttling polymerization as a strategy to generate multi-state catalysts, and (3) further insights on metallacycle mechanisms for selectively oligomerizing ethylene. Research by Professor Waymouth will engage students in a highly interdisciplinary research area that combines organic and organometallic syntheses, computational methods, mechanistic inorganic and organometallic chemistry, catalytic olefin polymerization, and analysis of polymer structure and properties. The catalytic polymerization of olefins constitutes one of the major technological achievements of the 20th Century. Olefin polymerization catalysis is prototypical translational science, where new scientific insights and advances in catalyst developments have transformed industrial practice. In addition to the impact of Professor Waymouth's research and his mentoring activities, this NSF sponsored research will be coupled with a number of initiatives that will broaden the impact of his scholarly activities. Professor Waymouth plans to recruit a high school science teacher to spend the summer of 2009 in his laboratory to develop teaching modules associated with macromolecular science, and to the extent appropriate, the intriguing features of multiblock polyolefins. He has taken an active role in recruiting and mentoring women, underrepresented, and disabled students.

美国国家科学基金会化学部的有机和高分子化学项目支持斯坦福大学的罗伯特·M·韦茅斯教授，他建议开展研究，为烯烃催化转化为高价值材料和化学中间体设计新的动力学策略。具体目标是开发合成策略，以生成具有特定序列分布的聚烯烃，并从现成的烯烃原料中生成新类别的遥控齐聚物。从拟议的工作中预期的具体智力成果包括：(1)了解构象动力学在生成可进入多个动力学状态的“智能”催化剂方面的作用；(2)了解作为生成多状态催化剂的策略的链穿梭聚合的必要和充分标准；以及(3)对选择性低聚乙烯的金属循环机理有进一步的见解。韦茅斯教授的研究将吸引学生进入一个高度交叉的研究领域，该领域结合了有机和有机金属合成、计算方法、机械无机和有机金属化学、催化烯烃聚合以及聚合物结构和性能分析。烯烃催化聚合是20世纪的主要技术成果之一。烯烃聚合催化是典型的转化科学，在这一领域，新的科学见解和催化剂开发的进步已经改变了工业实践。除了韦茅斯教授的研究和他的指导活动的影响外，NSF赞助的这项研究还将伴随着一系列举措，这些举措将扩大他的学术活动的影响。韦茅斯教授计划招聘一名高中科学教师，在2009年夏天在他的实验室里开发与大分子科学相关的教学模块，并在适当的程度上开发多嵌段聚烯烃的有趣特征。他在招募和指导妇女、任职人数不足和残疾学生方面发挥了积极作用。