High-temperature rare earth polymerization catalysts

高温稀土聚合催化剂

• 批准号: 430258-2012
• 负责人: Emslie, David
• 金额: $ 7.29万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=552544
• 关键词: temperature; rare; earth; polymerization; catalysts

Rare earth (RE; group 3 and lanthanide metal) catalysts exhibit a range of unique and commercially attractive polymerization behaviours that are typically inaccessible with transition metal (TM) catalysts. These behaviours can provide access to new types of polyethylene copolymer and can also allow polymerization without use of a co-catalyst. However, the vast majority of RE catalysts are thermally unstable at the temperatures required for high catalytic activity in solution, which has prevented commercialization.

稀土（RE；第 3 族和镧系金属）催化剂表现出一系列独特且具有商业吸引力的聚合行为，而过渡金属 (TM) 催化剂通常无法实现这些行为。这些行为可以提供新型聚乙烯共聚物，并且还可以在不使用助催化剂的情况下进行聚合。然而，绝大多数稀土催化剂在溶液中高催化活性所需的温度下是热不稳定的，这阻碍了商业化。