首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Acyclic diene metathesis (ADMET) depolymerization: Ethenolysis of 1,4-polybutadiene using a ruthenium complex
Authors:M D Watson  K B Wagener
Abstract:α,ω-Vinyl-terminated butadiene oligomers can be generated through the cross-metathesis of ethylene and high molecular weight 1,4-polybutadiene catalyzed by the complex RuCl2(?CHPh)(PCy3)2. The effect of varied ethylene pressure is studied in order to obtain the highest conversion to the monomer 1,5-hexadiene. A dramatic increase in yield of this monomeric diene is realized relative to previous published attempts utilizing a well-defined group VI metal alkylidene in the same chemistry. Traces of side products are observed, and alternate mechanisms for their formation were proposed. © 1999 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 37: 1857–1861, 1999
Keywords:olefin metathesis  ethenolysis  ADMET depolymerization  chain-transfer agent
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号