کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1328531 | 977589 | 2006 | 8 صفحه PDF | دانلود رایگان |
Cationic rare earth metal alkyl species, generated by the treatment of mono(cyclopentadienyl) bis(alkyl) rare earth metal complexes with 1 equiv. of a borate compound such as [Ph3C][B(C6F5)4], act as an excellent catalyst for the polymerization and copolymerization of various olefins such as ethylene, 1-hexene, styrene, norbornene, dicyclopentadiene, and isoprene. These catalysts show unprecedented activity and regio- and stereo-selectivity and afford a series of new polymers which are difficult to be prepared previously.
The cationic rare earth metal alkyl species, generated by the reaction of a half-sandwich rare earth metal bis(alkyl) complex with 1 equiv. of a borate compound [Ph3C][B(C6F5)4], acts as an excellent catalyst system for the regio- and stereospecific polymerization and copolymerization of various olefins, affording a series of new polymers which are difficult to be prepared previously.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 691, Issue 14, 1 July 2006, Pages 3114–3121