Replacement of one of the two C5Me5 ligands in the samarocene (II) complex (C5Me5) 2Sm (THF) 2 with a monodentate anionic ligand (e. g. , OAr, SAr, or NR1R2) gives a unique catalytic system, which can not only polymerize styrene and ethylene, but also copolymerize them into block styrene-ethylene copolymers under the presence of both monomers. On the other hand, addition of an appropriate cocatalyst such as MMAO or AlR3/[Ph3C][B (C6F 5) 4] to the samarocene complex (C5Me5) 2Sm (THF) 2 or (C5Me5) 2Sm (m-Me) 2AlMe2 affords a novel catalytic system for stereospecific 1,4-cis living polymerization of butadiene and copolymerization of butadiene with styrene.

Pure and Applied Chemistry
The Scientific Journal of IUPAC
Ed. by Burrows, Hugh / Stohner, Jürgen
12 Issues per year
IMPACT FACTOR 2016: 2.626
5-year IMPACT FACTOR: 3.210
CiteScore 2017: 3.42
SCImago Journal Rank (SJR) 2017: 1.212
Source Normalized Impact per Paper (SNIP) 2017: 1.546
- Online
- ISSN
- 1365-3075
Novel polymerization and copolymerization of ethylene, styrene, and/or butadiene by new organolanthanide-based catalysts
Free Access
Conference
International Conference on Organometallic Chemistry (XIX ICOMC), International Conference on Organometallic Chemistry, ICOMC, Organometallic Chemistry, XIXth, Shanghai, China, 2000-07-23–2000-07-28
About the article
Published Online: 2009-01-01
Published in Print: 2001-01-01
Citation Information: Pure and Applied Chemistry, Volume 73, Issue 2, Pages 291–294, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: https://doi.org/10.1351/pac200173020291.
© 2013 Walter de Gruyter GmbH, Berlin/Boston.
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