Results 91 to 100 of about 470,273 (164)

The activation of MgCl2-supported ziegler-natta catalysts—II

open access: yes, 1984
The properties have been examined for Ziegler-Natta catalysts comprising TiCl4 (Ti contents 2.0, 3.4 and 4.2%) supported on MgCl2 activated by dry ball-milling up to 250 hr.
G. Baruzzi   +5 more
core   +1 more source

The influence of magnesium dichloride as support on molecular weights of the polyethylenes produced by Ziegler-Natta catalyst [PDF]

open access: yesPolyolefins Journal
The paper presents data on the effect exerted by magnesium dichloride in Ziegler-Natta catalysts on the activity and molecular weight of polyethylene (PE) produced by ethylene polymerization in the absence or presence of hydrogen.
Tatiana Mikenas   +3 more
doaj   +1 more source

Innovative catalytic systems driving sustainable olefin polymerization: Recent advances and green chemistry approaches [PDF]

open access: yesPolyolefins Journal
This mini-review addresses the burgeoning requirements for environmentally friendly processes in the polymer industry, focusing on recent progress in developing catalytic systems for sustainable olefin polymerization.
Farabi Hossain, Md Enamul Hoque
doaj   +1 more source

Ziegler–Natta Catalysts: Regioselectivity and “Hydrogen Response”

open access: yes, 2019
Advanced High Throughput Experimentation (HTE) methods were applied to quantify the regioselectivity and the so-called “hydrogen response” in propene polymerization of four Ziegler–Natta catalysts representative of the three latest industrial ...
Nic. Friederichs (2533612)   +9 more
core   +1 more source

Homogeneous Vanadium-Based Catalysts for the Ziegler-Natta Polymerization of a-Olefins [PDF]

open access: yes, 2002
Although their activity is often inferior to that of other systems, the use of vanadium-based catalysts in homogeneous Ziegler Natta polymerizations allows the preparation of high-molecular-weight polymers with narrow molecular-weight distributions ...
Koten, G. van   +9 more
core   +1 more source

Ziegler–Natta Catalysts: Applications in Modern Polymer Science

open access: yesSynOpen, 2023
Keshav Taruneshwar Jha   +2 more
doaj   +1 more source

Ethylene and 1-butene Oligomerization with Benzimidazole Complexes of Nickel and Iron: A Case of Tandem Reaction

open access: yesReactions
The coordination chemistry of benzimidazole ligands combines σ donation and π backbonding. Owing to this electronic flexibility, benzimidazole ligands stabilize both electron deficient and electron-rich transition states in the catalytic cycle of Ziegler-
Nelson N. dos Santos   +4 more
doaj   +1 more source

Control of a Fluidized Bed Polyethylene Reactor [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2008
In present paper, dynamic behavior and control of a fluidized bed reactor for polyethylene production has been considered. A double active sites model for Ziegler-Natta catalysts is used for simulation of polymerization reaction. Hydrodynamic behavior of
Omid Vahidi   +2 more
doaj  

Influence of the Ethanol Content of Adduct on the Comonomer Incorporation of Related Ziegler-Natta Catalysts in Propylene (Co)polymerizations. [PDF]

open access: yesPolymers (Basel), 2023
Mehdizadeh M   +10 more
europepmc   +1 more source

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