Control of coordination polymerization behavior by counter-anionic effects
In coordination polymerization chemistry, the most active species are cationic transition
metals which bear vacant sites for monomer coordination. The steric and electronic …
metals which bear vacant sites for monomer coordination. The steric and electronic …
MAO-and Borate-Free Activating Supports for Group 4 Metallocene and Post-Metallocene Catalysts of α-Olefin Polymerization and Oligomerization
IE Nifant'ev, PD Komarov, OD Kostomarova… - Polymers, 2023 - mdpi.com
Modern industry of advanced polyolefins extensively uses Group 4 metallocene and post-
metallocene catalysts. High-throughput polyolefin technologies demand the use of …
metallocene catalysts. High-throughput polyolefin technologies demand the use of …
The highly controlled and efficient polymerization of ethylene
A Goller, J Obenauf, WP Kretschmer… - Angewandte Chemie …, 2023 - Wiley Online Library
The highly controlled and efficient polymerization of ethylene is a very attractive but
challenging target. Herein we report on a Coordinative Chain Transfer Polymerization …
challenging target. Herein we report on a Coordinative Chain Transfer Polymerization …
Methylaluminoxane's molecular cousin: A well-defined and “complete” al-activator for molecular olefin polymerization catalysts
Catalytic activity in olefin polymerization depends not only on the catalyst but also, crucially,
on activator/alkylator/scavenger “packages.” Along with binary mixtures containing Lewis or …
on activator/alkylator/scavenger “packages.” Along with binary mixtures containing Lewis or …
Modeling of fluid bed Reactor of Ethylene Di Chloride production in Abadan Petrochemical based on three-phase hydrodynamic model
The catalytic process of ethylene oxychlorination can be split into two steps, uiz.
ethylenechlorination with the reduction of cupric chloride and reoxidation of the cuprous …
ethylenechlorination with the reduction of cupric chloride and reoxidation of the cuprous …
Role of Solvent Coordination on the Structure and Dynamics of ansa-Zirconocenium Ion Pairs in Aromatic Hydrocarbons
The solution structure and dynamics of three prototypical bis-indenyl ansa-zirconocenium
methyl cations (Me2Si (2-methyl-4-phenyl-6-tert-butylindenyl) 2ZrMe+,[1Me]+; Me2Si (2, 4 …
methyl cations (Me2Si (2-methyl-4-phenyl-6-tert-butylindenyl) 2ZrMe+,[1Me]+; Me2Si (2, 4 …
Ion pairing in transition metal catalyzed olefin polymerization
Ion pairing is known to play a key role in stoichiometric and catalytic reactions mediated by
charged transition metal complexes, especially when they are conducted in low-polar …
charged transition metal complexes, especially when they are conducted in low-polar …
Unexpected precatalyst σ-ligand effects in phenoxyimine Zr-catalyzed ethylene/1-octene copolymerizations
Recent decades have witnessed intense research efforts aimed at developing new
homogeneous olefin polymerization catalysts, with a primary focus on metal-Cl or metal …
homogeneous olefin polymerization catalysts, with a primary focus on metal-Cl or metal …
Non-traditional Ziegler-Natta catalysis in α-olefin transformations: Reaction mechanisms and product design
I Nifant'ev, P Ivchenko, A Tavtorkin… - Pure and Applied …, 2017 - degruyter.com
This paper describes our recent results in the field of zirconocene-catalyzed α-oltfin
transformations, and focuses on questions regarding the reaction mechanism, rational …
transformations, and focuses on questions regarding the reaction mechanism, rational …
Understanding the role of metallocenium ion-pair aggregates on the rate of olefin insertion into the metal–carbon bond
L Sian, A Macchioni, C Zuccaccia - ACS Catalysis, 2019 - ACS Publications
An integrated thermodynamic and kinetic study was carried out to clarify how the formation
of ionic aggregates higher than ion pairs affects the rate of olefin insertion into the Zr–C …
of ionic aggregates higher than ion pairs affects the rate of olefin insertion into the Zr–C …