Supported Ziegler-Natta Catalysts for Propylene Polymerization. Study of Surface Species Formed at Interaction of Electron Donors and TiCl4 with Activated MgCl2 Full article
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Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694 |
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| Output data | Year: 2009, Volume: 266, Number: 1, Pages: 39-49 Pages count : 11 DOI: 10.1016/j.jcat.2009.05.012 | ||
| Tags | Activated MgCl2, DRIFT, Internal donor, MgCl2-supported Ziegler-Natta catalysts, Polymerization, Propylene, TiCl4 | ||
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Abstract:
Adsorption of various internal electron donors (IDs) and coadsorption of these IDs with TiCl4 on activated MgCl2 have been studied by DRIFT and analytical techniques. As a result, the structures of the ID species on the (1 0 4) and (1 1 0) MgCl2 surfaces were proposed. Based on the ν(Cdouble bond; length as m-dashO) band resolution data for the adsorbed ID, it was estimated that the activated MgCl2 surface contains ca. 90% of the five-coordinated Mg cations residing on the (1 0 4) surface and ca. 10% of the four-coordinated Mg cations residing on the (1 1 0) surface. The size of ID molecule was found to influence its adsorption more significantly on the (1 0 4) MgCl2 surface than on the (1 1 0) MgCl2 surface. Coadsorption of the various ID and TiCl4 demonstrated that TiCl4 formed greatly weaker surface complexes than the ID; obviously, upon coadsorption TiCl4 occupies mainly the adsorption sites that are inaccessible for the ID because of steric reasons.
Cite:
Stukalov D.V.
, Zakharov V.A.
, Potapov A.G.
Supported Ziegler-Natta Catalysts for Propylene Polymerization. Study of Surface Species Formed at Interaction of Electron Donors and TiCl4 with Activated MgCl2
Journal of Catalysis. 2009. V.266. N1. P.39-49. DOI: 10.1016/j.jcat.2009.05.012 WOS Scopus РИНЦ ANCAN OpenAlex
Supported Ziegler-Natta Catalysts for Propylene Polymerization. Study of Surface Species Formed at Interaction of Electron Donors and TiCl4 with Activated MgCl2
Journal of Catalysis. 2009. V.266. N1. P.39-49. DOI: 10.1016/j.jcat.2009.05.012 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Jan 12, 2009 |
| Accepted: | May 13, 2009 |
| Published online: | Jun 17, 2009 |
| Published print: | Aug 15, 2009 |
Identifiers:
| Web of science: | WOS:000269326800005 |
| Scopus: | 2-s2.0-67651154121 |
| Elibrary: | 13606516 |
| Chemical Abstracts: | 2009:934280 |
| Chemical Abstracts (print): | 151:390157 |
| OpenAlex: | W2075440656 |