The influence of Ziegler-Natta and metallocene catalysts on polyolefin structure, properties, and processing ability

A Shamiri, MH Chakrabarti, S Jahan, MA Hussain… - Materials, 2014 - mdpi.com
50 years ago, Karl Ziegler and Giulio Natta were awarded the Nobel Prize for their discovery
of the catalytic polymerization of ethylene and propylene using titanium compounds and …

Mechanism of Propylene Polymerization with MgCl2-Supported Ziegler–Natta Catalysts Based on Counting of Active Centers: The Role of External Electron Donor

X Shen, Z Fu, J Hu, Q Wang, Z Fan - The Journal of Physical …, 2013 - ACS Publications
Four R1R2Si (OMe) 2 type compounds were added as an external electron donor (De) in
propylene polymerization with TiCl4/Di/MgCl2 type supported Ziegler–Natta catalysts (Di …

MgCl2/R′nAl(OR)3−n: An Excellent Activator/Support for Transition‐Metal Complexes for Olefin Polymerization

Y Nakayama, J Saito, H Bando… - Chemistry–A European …, 2006 - Wiley Online Library
A new and effective method for the activation, and simultaneously, immobilization of bis
(phenoxyimine) early‐transition‐metal complexes for olefin polymerization (known as FI …

Effects of titanium dispersion state on distribution and reactivity of active centers in propylene polymerization with MgCl2‐supported Ziegler‐Natta catalysts: A kinetic …

B Jiang, B Zhang, Y Guo, A Ali, W Guo, Z Fu… - …, 2020 - Wiley Online Library
Kinetics of propylene polymerization with two TiCl4/MgCl2 model catalysts of different Ti
load (Cat‐1: Ti 0.1 wt%; Cat‐2: Ti 1.0 wt%) was investigated in this work. Time‐dependent …

The Role of External Alkoxysilane Donors on Stereoselectivity and Molecular Weight in MgCl2-Supported Ziegler–Natta Propylene Polymerization: A Density …

T Wondimagegn, T Ziegler - The Journal of Physical Chemistry C, 2012 - ACS Publications
The influence of the structure of external alkoxysilane donors on stereoslectivity and
molecular weight distributions in MgCl2-supported Ziegler–Natta catalysis has been …

Structure of Donor Molecule 9, 9-Bis (Methoxymethyl)-Fluorene in Ziegler-Natta Catalyst by Infrared Spectroscopy and Quantum Chemical Calculation

L Brambilla, G Zerbi, F Piemontesi… - The Journal of …, 2010 - ACS Publications
Infrared vibrational spectroscopy has been used to reveal the conformations of the Ziegler−
Natta catalysts internal electron donor 9, 9-bis (methoxymethyl)-fluorene and its selectively …

1-Hexene polymerization with supported Ziegler-Natta catalyst: Correlation between catalyst particle fragmentation and active center distribution

P Yang, Z Fu, Z Fan - Molecular Catalysis, 2018 - Elsevier
Hexene was polymerized with a commercial MgCl 2-supported Ziegler-Natta catalyst using
triethylaluminum as cocatalyst at different monomer/catalyst mass ratio (m hexene/m cat= 5 …

Polymerization Kinetics of Propylene with the MgCl2-Supported Ziegler-Natta Catalysts—Active Centers with Different Tacticity and Fragmentation of the Catalyst

WP Zheng, YP Ma, DL Du, AH He, HF Shao… - Chinese Journal of …, 2021 - Springer
The catalytic activity and stereospecificity of olefin polymerization by using heterogeneous
TiCl 4/MgCl 2 Ziegler-Natta (ZN) catalysts are determined by the structure and nature of …

Heterogeneity of active sites of Ziegler‐Natta catalysts: The effect of catalyst composition on the MWD of polyethylene

MI Nikolaeva, TB Mikenas, MA Matsko… - Journal of Applied …, 2010 - Wiley Online Library
Experimental data on the molecular weight distribution (MWD) of polyethylene (PE)
produced over a broad number of Ziegler‐Natta catalysts differing in composition and …

Effect of AlEt3 and an External Donor on the Distribution of Active Sites According to Their Stereospecificity in Propylene Polymerization over TiCl4/MgCl2 Catalysts …

M Nikolaeva, T Mikenas, M Matsko… - … Chemistry and Physics, 2016 - Wiley Online Library
The data on content of individual fractions with different microtacticity for poly
(propylene)(PP) samples produced over titanium–magnesium catalysts (TMCs) with …