Group 3 metal catalysts for ethylene and α-olefin polymerization

✍ Scribed by Jérôme Gromada; Jean-François Carpentier; André Mortreux

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 289 KB
• Volume: 248
• Category: Article
• ISSN: 0010-8545
• DOI: 10.1016/j.ccr.2004.02.002

✦ Synopsis

This review focuses on the use of group 3 organometallic catalysts for ethylene and ␣-olefins polymerization, as well as for functionalization of such poly(␣-olefin) chains. It describes the evolution from initially designed neutral alkyl (hydrido) bis(cyclopentadienyl) complexes of trivalent lanthanides towards ansa-bridged ligand systems, "constrained-geometry" hemi-metallocenes, divalent lanthanidocenes, and the most recent cyclopentadienyl-free systems.