Study of the Interaction of Diethyl 2,3-diisobutyl Succinate (DIBS) with Magnesium Dichloride and the Stereoisomeric Configuration of DIBS within Titanium-Magnesium Catalysts of Propylene Polymerization Full article
| Journal |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Output data | Year: 2024, Volume: 680, Article number : 119741, Pages count : 7 DOI: 10.1016/j.apcata.2024.119741 | ||
| Tags | Titanium–magnesium catalysts; Propylene polymerization; Di-isobutyl succinate; IR spectroscopy; 13C NMR spectroscopy | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0037 |
Abstract:
It was found by chromatography and 13C NMR spectroscopy that diethyl 2,3-diisobutyl succinate (DIBS), which is used as a stereoregulating electron donor in titanium–magnesium catalysts, exists as a mixture of rac and meso stereoisomers. Their molecular structure was calculated using the DFT method. It was ascertained that mainly rac-DIBS is anchored to the surface of MgCl2. Subsequent interaction between the MgCl2/DIBS sample and TiCl4 leads to further removal of meso-DIBS. Titanium–magnesium catalysts of composition MgCl2/DIBS/TiCl4 prepared by different procedures contain 85–91% rac-DIBS. The IR spectroscopy data on the stereoisomeric configuration of DIBS in MgCl2/DIBS samples and titanium–magnesium catalysts MgCl2/DIBS/TiCl4 prepared by different procedures and the data on propylene polymerization over these catalysts are presented.
Cite:
Panchenko V.N.
, Babushkin D.E.
, Prikhod’ko S.A.
, Barabanov A.A.
, Zakharov V.A.
Study of the Interaction of Diethyl 2,3-diisobutyl Succinate (DIBS) with Magnesium Dichloride and the Stereoisomeric Configuration of DIBS within Titanium-Magnesium Catalysts of Propylene Polymerization
Applied Catalysis A: General. 2024. V.680. 119741 :1-7. DOI: 10.1016/j.apcata.2024.119741 WOS Scopus РИНЦ AN OpenAlex
Study of the Interaction of Diethyl 2,3-diisobutyl Succinate (DIBS) with Magnesium Dichloride and the Stereoisomeric Configuration of DIBS within Titanium-Magnesium Catalysts of Propylene Polymerization
Applied Catalysis A: General. 2024. V.680. 119741 :1-7. DOI: 10.1016/j.apcata.2024.119741 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jan 29, 2024 |
| Accepted: | Apr 13, 2024 |
| Published online: | Apr 15, 2024 |
| Published print: | Jun 25, 2024 |
Identifiers:
| Web of science: | WOS:001235208500001 |
| Scopus: | 2-s2.0-85191329258 |
| Elibrary: | 67555783 |
| Chemical Abstracts: | 2024:936008 |
| OpenAlex: | W4394824100 |