A systematic study on the effect of co-catalysts composition on the performance of Ziegler-Natta catalyst in ethylene/1-butene co-polymerizations

M Masoori, M Nekoomanesh, S Posada-Pérez… - Polymer, 2022 - Elsevier
Abstract Effect of the type and composition of conventional co-catalysts on the catalytic
performance of Ziegler-Natta catalysts has been investigated by means of a combined …

[HTML][HTML] Exploring microstructure of MgCl2· nEtOH adducts for Ziegler-Natta catalysts

R Bazvand, N Bahri-Laleh, H Abedini… - Journal of Molecular …, 2023 - Elsevier
The activation of MgCl 2 through the formation of MgCl 2· nEtOH adducts is considered the
principal step for the preparation of high performance Ziegler-Natta catalysts for olefins …

Influence of the reaction conditions on the Ziegler-Natta catalyzed ethylene polymerization: Kinetics and properties of the resulting polymers

N Moeini, H Teimoury, M Salimi, N Bahri-Laleh… - Polymer, 2024 - Elsevier
This work conducts an investigation into how the polymerization conditions affect the kinetics
of ethylene homopolymerization and the properties of the final polyethylene using a …

Chemical dealcoholation of MgCl2·EtOH adduct by Al compounds and its effect on the performance of Ziegler–Natta catalysts

R Bazvand, N Bahri‐Laleh, H Abedini… - Applied …, 2024 - Wiley Online Library
MgCl2· nEtOH adducts play a major role in the industrial production of polyethylenes. Their
chemical dealcoholation, usually accomplished during the catalyst synthesis step, has had a …

The effect of SiO2 calcination temperature and [Si]/[Mg] molar ratio on the performance of bi-supported Ziegler-Natta catalysts in ethylene polymerizations

H Teimoury, N Moeini, N Bahri-Laleh, FY Shih… - Journal of Polymer …, 2023 - Springer
In this study, a group of bi-supported Ziegler-Natta catalysts (SiO2@ MgCl2/THF/TiCl4/di-n-
butyl phthalate) with various SiO2 calcination temperatures and [Si]/[Mg] molar ratios were …

Effect of adduct synthesis parameters on the ethylene polymerization kinetics of Ziegler Natta catalysts

F Nouri‐Ahangarani, N Bahri‐Laleh… - Journal of Applied …, 2023 - Wiley Online Library
Here, it is aimed to clarify the structure‐performance relationship in MgCl2 based Ziegler
Natta catalysts toward ethylene polymerizations. In this regard, 11 different adduct …

Ziegler-Natta catalyst particle size control in propylene/α-olefin (co) polymerizations

A Shams, F Karkhaneh, M Emami, HR Teimoury… - Molecular …, 2024 - Elsevier
This study investigates the influence of particle size of Ziegler-Natta (ZN) catalysts on the
micro-structure and properties of related polypropylenes. In this regard, three catalysts were …

Effect of Ligand Steric Hindrance on Catalytic Polymerization of Cycloolefin Polymer (COP)

H Zhang, Y Fang, M Huang, Y Zhong, M Yu… - …, 2023 - Wiley Online Library
The traditional two‐component Ziegler‐Natta catalyst has low catalytic activity when
initiating ring‐opening metathesis polymerization (ROMP) and is unstable and easy to …