Results 1 to 10 of about 843,644 (271)

Effects of various poisoning compounds on the activity and stereospecificity of heterogeneous Ziegler–Natta catalyst [PDF]

open access: goldScience and Technology of Advanced Materials, 2008
A TiCl4/ethylbenzoate/MgCl2 Ziegler–Natta catalyst was pretreated with chemically different poisoning compounds to investigate their effects on the catalyst activity and stereospecificity for propylene polymerization.
Kitti Tangjituabun et al
doaj   +3 more sources

Experimental-Density Functional Theory (DFT) Study of the Inhibitory Effect of Furan Residues in the Ziegler-Natta Catalyst during Polypropylene Synthesis. [PDF]

open access: yesInt J Mol Sci, 2023
In this experimental–theoretical study, the effect of furan on Ziegler–Natta catalyst produc tivity, melt flow index (MFI), and mechanical properties of polypropylene were investigated.
Hernández-Fernández J   +2 more
europepmc   +3 more sources

Imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalysts for ethylene polymerization and ethylene/1-hexene copolymerization [PDF]

open access: yesPolyolefins Journal, 2016
A novel imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalyst for ethylene and ethylene/1-hexene polymerization is investigated. The catalyst is prepared by modification of (SiO2/MgO/MgCl2)TiClx Ziegler-Natta catalysts via supporting vanadium ...
Ting Fu   +5 more
doaj   +3 more sources

High Melting Point of Linear, Spiral Polyethylene Nanofibers and Polyethylene Microspheres Obtained Through Confined Polymerization by a PPM‐Supported Ziegler‐Natta Catalyst [PDF]

open access: yesChemistryOpen, 2020
In this work, different types of polyethylene (linear, spiral nanofibers and microspheres) were obtained via confined polymerization by a PPM‐supported Ziegler‐Natta catalyst.
Dr. Yu Xiao   +3 more
doaj   +2 more sources

Synthesizing polypropylene with percolation network catalyzed by inorganic nanoparticles-functionalized Ziegler-Natta catalyst [PDF]

open access: yesPolyolefins Journal
Polypropylene is one of the most widely used synthetic resins, which is mainly synthesized with Ziegler-Natta catalysts. In this paper, the functionalized Ziegler-Natta catalyst is applied to prepare high-performance polypropylene.
Tingting Yang   +3 more
doaj   +3 more sources

Electronic Properties of Ti Sites in Ziegler–Natta Catalysts [PDF]

open access: hybrid, 2021
Although Ziegler-Natta (ZN) catalysts play a major role in the polyolefin market, a true understanding of their properties at the molecular level is still missing.
Alessandro Piovano   +8 more
core   +7 more sources

Preparation of High-Performance Polyethylene Nanocomposites with Oleic Acid–Siloxene-Supported Ziegler–Natta Catalysts [PDF]

open access: yesMolecules
The addition of two-dimensional inorganic nanomaterials can effectively enhance the properties of polyethylene (PE). In the present study, a series of high-performance PE/oleic acid (OA)–siloxene nanocomposites were prepared by in situ polymerization ...
Huan Yue   +6 more
doaj   +2 more sources

Parts per Million of Propanol and Arsine as Responsible for the Poisoning of the Propylene Polymerization Reaction. [PDF]

open access: yesPolymers (Basel), 2023
Polypropylene synthesis is a critical process in the plastics industry, where control of catalytic activity is essential to ensure the quality and performance of the final product.
Hernández-Fernández J   +2 more
europepmc   +3 more sources

Comparison of Activity of Ziegler-Natta Catalysts Prepared by Recrystallization and Chemical Reaction Methods towards Polymerization of Ethylene [PDF]

open access: bronze, 2009
In the present study, Ziegler-Natta catalysts were prepared on supports that were synthesized via two different methods. The first method (method A) is called the recrystallization method, which employed MgCl2 as a precursor. The second method (method B)
Piyavit Pokasermsong   +1 more
openalex   +4 more sources

Home - About - Disclaimer - Privacy