Multiscale modelling of multizone gas phase propylene (co) polymerization reactors—A comprehensive review

K Kulajanpeng, N Sheibat‐Othman… - … Canadian Journal of …, 2022 - Wiley Online Library
Catalysts and polymerization processes have evolved over the years. Such significant
developments have allowed producers to broaden the range of polymer microstructure and …

Recent progress in solid‐state nuclear magnetic resonance of half‐integer spin low‐γ quadrupolar nuclei applied to inorganic materials

ME Smith - Magnetic Resonance in Chemistry, 2021 - Wiley Online Library
An overview is presented of recent progress in the solid‐state nuclear magnetic resonance
(NMR) observation of low‐γ nuclei, with a focus on applications to inorganic materials. The …

Well-Defined Ti Surface Sites in Ziegler–Natta Pre-Catalysts from 47/49Ti Solid-State Nuclear Magnetic Resonance Spectroscopy

AV Yakimov, CJ Kaul, Y Kakiuchi… - The Journal of …, 2024 - ACS Publications
Treatment of Ziegler–Natta (ZN) catalysts with BCl3 improves their activity by increasing the
number of active sites. Here we show how 47/49Ti solid-state nuclear magnetic resonance …

Geometry and Local Environment of Surface Sites in Vanadium-Based Ziegler–Natta Catalysts from 51V Solid-State NMR Spectroscopy

S Sabisch, Y Kakiuchi, SR Docherty… - Journal of the …, 2023 - ACS Publications
Since its emergence over 50 years ago, the structure of surface sites in Ziegler–Natta
catalysts, which are responsible for a major fraction of the world's supply of polyethylene …

Insight of polypropylene synthesis with high performance multidentate internal donor catalyst system

PM Trivedi, CP Gocher… - Journal of applied …, 2023 - Wiley Online Library
Propylene polymerization using magnesium dichloride (MgCl2) supported Ziegler–Natta (Z–
N) system is a robust and preferred catalytic process for producing polypropylene (PP) …

Monitoring the Kinetics of Internal Donor Clean-up from Ziegler–Natta Catalytic Surfaces: An Integrated Experimental and Computational Study

A Vittoria, G Antinucci, F Zaccaria… - The Journal of …, 2020 - ACS Publications
Surface modification of MgCl2-supported Ziegler–Natta catalysts (ZNCs) by means of
organic Lewis bases, either used as precatalyst components (“internal donors”, ID) or in …

Engineering Poly(ethylene-co-1-butene) through Modulating the Active Species by Alkylaluminum

Y Yu, TFL McKenna, C Boisson… - ACS …, 2020 - ACS Publications
A SiO2/MgCl2-bisupported Ziegler–Natta-type catalyst is studied in gas-phase ethylene/1-
butene copolymerization. With a minimal amount of alkylaluminum required to activate the …

Influence of titanium loading of TiCl4/MgCl2 Ziegler-Natta catalyst on Trans-1, 4 polymerization of isoprene

Q Niu, A He, C Si, G Liu, M Xiao, G Chen, M Jin - Polymer, 2024 - Elsevier
Abstract Four TiCl 4/MgCl 2 Ziegler-Natta catalysts (Cat-1∼ Cat-4) with titanium contents in
the range of 0.038–0.578 wt% were synthesized by the chemical rout and used for isoprene …

Molecular-level insights into adsorption of a novel silyl ester donor on essential MgCl2 facets of supported Ziegler–Natta catalysts

M Ghashghaee, H Arabi, M Ghambarian - Journal of Physics and …, 2021 - Elsevier
This article deals with the adsorption properties of a new silyl ester donor called bis
(benzoyloxy) dimethylsilane (BDMS) on the MgCl 2 support of the Ziegler–Natta catalysts in …

Molecular simulation of selective coordination for various silyl ester Lewis base donors with MgCl2 in Ziegler–Natta catalysis

M Ghashghaee, H Arabi, M Ghambarian - Molecular Simulation, 2023 - Taylor & Francis
In this article, we present the influence of substituents with different electron-donating (ED)
powers on the coordination properties of bis (benzoyloxy) dimethylsilane (BDMS) on the …