Novel Zirconocene Hydride Complexes in Homogeneous and in SiO2-Supported Olefin-Polymerization Catalysts Modified with Diisobutylaluminum Hydride or Triisobutylaluminum Full article
| Journal |
Macromolecular Chemistry and Physics
ISSN: 1022-1352 , E-ISSN: 1521-3935 |
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| Output data | Year: 2008, Volume: 209, Number: 12, Pages: 1210-1219 Pages count : 10 DOI: 10.1002/macp.200800084 | ||||
| Tags | MAO activation, Metallocene catalysts, Olefin polymerization, Polyolefins, SiO2 support | ||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | German Research Foundation | 436 RUS 17/28/07 |
| 2 | Verband der Chemischen Industrie | |
| 3 | BASELL GmbH |
Abstract:
Reactive species in SiO2-supported, zirconocene-based olefin-polymerization catalysts have been characterized by comparison of their UV-vis spectra with those of related, NMRspectroscopically identified catalyst species in homogeneous solution. Neutral zirconocene dihydride complexes are found to arise in hydrocarbon solutions as well as on SiO2 supports when catalyst systems that contain rac-Me2Si(ind)2ZrCl2 and methylaluminoxane (MAO) are modified by addition of diisobutylaluminum hydride or triisobutylaluminum. These complexes,
tentatively formulated as adducts with Lewis-acidic alkylaluminum species AlR2X, racMe2Si(ind)2ZrH2
{nAlR2X}, are reconverted into the initial reactive zirconocene cations upon addition of isobutene to these reaction systems
Cite:
Babushkin D.E.
, Panchenko V.N.
, Timofeeva M.N.
, Zakharov V.A.
, Brintzinger H.H.
Novel Zirconocene Hydride Complexes in Homogeneous and in SiO2-Supported Olefin-Polymerization Catalysts Modified with Diisobutylaluminum Hydride or Triisobutylaluminum
Macromolecular Chemistry and Physics. 2008.
V.209. N12. P.1210-1219. DOI: 10.1002/macp.200800084
WOS
Scopus
РИНЦ
OpenAlex
ANCAN
Novel Zirconocene Hydride Complexes in Homogeneous and in SiO2-Supported Olefin-Polymerization Catalysts Modified with Diisobutylaluminum Hydride or Triisobutylaluminum
Macromolecular Chemistry and Physics. 2008.
V.209. N12. P.1210-1219. DOI: 10.1002/macp.200800084
WOS
Scopus
РИНЦ
OpenAlex
ANCAN
Files:
Full text from publisher
Dates:
| Submitted: | Feb 11, 2008 |
| Accepted: | Mar 6, 2008 |
| Published online: | May 16, 2008 |
| Published print: | Jun 19, 2008 |
Identifiers:
| ≡ Web of science: | WOS:000257378400003 |
| ≡ Scopus: | 2-s2.0-55349086558 |
| ≡ Elibrary: | 13572421 |
| ≡ OpenAlex: | W2078879405 |
| ≡ Chemical Abstracts: | 2008:818881 |
| ≡ Chemical Abstracts (print): | 149:289011 |