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Preactive Site in Ziegler–Natta Catalysts [PDF]

open access: yesThe Journal of Physical Chemistry C, 2019
Ziegler–Natta catalysts are one of the most important industrial catalysts for the production of isotactic polypropylene, yet they are still not properly understood at the molecular level.
E. S. Blaakmeer   +4 more
semanticscholar   +3 more sources

The influence of support in Ziegler-Natta catalysts for olefin polymerization

open access: greenRevista Técnica de la Facultad de Ingeniería, 2011
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A. Parada   +3 more
doaj   +1 more source

Spectroscopic Signature and Structure of the Active Sites in Ziegler-Natta Polymerization Catalysts Revealed by Electron Paramagnetic Resonance.

open access: yesJournal of the American Chemical Society, 2021
Despite decades of extensive studies, the atomic-scale structure of the active sites in heterogeneous Ziegler-Natta (ZN) catalysts, one of the most important processes of the chemical industry, remains elusive and a matter of debate. In the present work,
A. Ashuiev   +12 more
semanticscholar   +1 more source

The Use of Electron Donors to Increase Stereospecificity in Ziegler-Natta Propylene Polymerization [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2016
Different chemical components in traditional Ziegler–Natta catalytic system include: (1) titanium and vanadium containing compounds, mostly TiCl4, as an active centre, (2) trialkylaluminium-based Lewis acid compounds, especially triethylaluminium, as ...
Farshid Nouri-Ahangarani   +2 more
doaj   +1 more source

Imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalysts for ethylene polymerization and ethylene/1-hexene copolymerization [PDF]

open access: yesPolyolefins Journal, 2016
A novel imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalyst for ethylene and ethylene/1-hexene polymerization is investigated. The catalyst is prepared by modification of (SiO2/MgO/MgCl2)TiClx Ziegler-Natta catalysts via supporting vanadium ...
Ting Fu   +5 more
doaj   +1 more source

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