Metathesis co-polymerization as a means of comparing the reactivity of ruthenium initiators in conventional solvents and ionic liquids

被引:13
作者
Gallagher, Margaret M. [1 ]
Rooney, A. Denise [1 ]
Rooney, John J. [1 ]
机构
[1] Natl Univ Ireland Univ Coll Cork, Dept Chem, Maynooth, Kildare, Ireland
关键词
Olefin metathesis; Ruthenium initiators; Co-polymers; Polymer microstructure; Ionic liquids; HIGHLY-ACTIVE CATALYSTS; OLEFIN METATHESIS; ALKENE METATHESIS; CARBENE COMPLEX; ALLENYLIDENE; CYCLOPENTENE; INDENYLIDENE; NORBORNENE; 1-OCTENE;
D O I
10.1016/j.molcata.2008.12.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ring opened metathesis polymerization was carried out on a number of cyclic olefins using Cl-2(PCy3)(2)Ru[CH(Ph)] and [(eta(6)-p-cymene)(PCy3RuCl(=C=C=CPh2)]OTf in dichloromethane and a range of ionic liquids. Microstructural parameters were determined from the C-13 NMR spectra recorded of the polymers. The findings indicate that an increase in activity of both catalysts can occur in certain ionic liquids systems. It was also observed that the activity of [(eta(6)-p-cymene)(PCy3)RuCl(=C=C=CPh2)]OTf increases upon addition of an excess of phenol (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:78 / 83
页数:6
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