Effects of Donor Solvation and Aggregation on Structures and Stabilities of Acyclic and Cyclic Aluminoxanes: Results of Ab Initio Studies Including Dispersion

摘要：

Methylaluminoxane (MAO) refers to the complex mixture of species formed by partial hydrolysis of trimethylaluminum (TMA, 1).Many transition metal-catalyzed polymerization reactions are MAO-assisted and the reaction mechanisms remain poorly understood.MAO is generally employed in huge excess relative to the metal catalyst and there have been many structural studies of large MAO aggregates.However, the existence of large MAO aggregates does not imply that these species are involved in catalysis.It is our hypothesis that smaller MAO species co-exist with the aggregates and that the smaller systems are assisting in catalysis.

作者: Rainer Glaser Kaidi Yang

作者单位: Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, U.S.A.

会议类型: 国际会议

会议名称: 9th International Symposium on High-Tech Polymer Materials(第9届国际高技术高分子材料学术会议)(HTPM-9)

会议地点: 郑州

会议语种:英文

页码: 37-38

在线出版日期: 2016-07-11（万方平台首次上网日期，不代表论文的发表时间）