Catalytic synthesis of polynorbornene and polynorbornadiene of low polydispersity index by [Ru(η5-C9H7)Cl(COD)] (COD=1,5-cyclooctadiene)

被引:16
作者
Alvarez, P [1 ]
Gimeno, J [1 ]
Lastra, E [1 ]
机构
[1] Univ Oviedo, Dept Quim Organ & Inorgan, Fac Quim,CSIC, Inst Quim Organometal Enrique Moles,Unidad Asocia, E-33006 Oviedo, Spain
关键词
D O I
10.1021/om020426h
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Thermal ROMP of norbonene and norbornaSurnmar diene can be achieved at room temperature and stereoselectively using as initiator the indenyl complex [RU(q'd5C9LH7)C1(COD)1. The polymers are obtained in high yields showing a low polydispersity index, in the range 1. 1 4.7, and high M, and Mu, values in a monomodal distribution. Catalytic polymerization of norbornadiene also takes place in the presence of air. A mechanism for the formation of the active carbene species via deprotonation of the cyclooctadiene ligand is proposed.
引用
收藏
页码:5678 / 5680
页数:3
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