Results 31 to 40 of about 81,401 (281)

Synthesis of Isotactic Polybutene-1 with Ziegler-Natta Catalyst [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2022
Hypothesis: Butene-1 is in excess in the polyolefin plants of Iran. Considering the properties of isotactic polybutene-1, including high creep and environmental stress cracking resistances, excellent elastic reversibility and good chemical abrasion ...
shokoufeh Hakim   +2 more
doaj   +1 more source

The monopotassium salt of the ligand of a Ziegler–Natta catalyst [PDF]

open access: yes, 1993
The anion of dipotassium (tert-butylamino)-dimethyl(tetramethylcyclopentadienyl)silanediide can coordinate to transition metals to form precursors for single-component Ziegler-Natta polymerization catalysts.
Bercaw, John E.   +2 more
core   +1 more source

Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization [PDF]

open access: yes, 2013
A series of 1-aryliminoethylpyridine ligands (L1―L3) was synthesized by condensation of 2-acetylpyridine with 1-aminonaphthalene, 2-aminoanthracene or 1-aminopyrene, respectively.
Durand, Jérôme   +6 more
core   +4 more sources

Immobilizing metallocene by solid polymethylaluminoxane “sMAO” for slurry-phase ethylene-1-hexene copolymerization [PDF]

open access: yesMATEC Web of Conferences, 2022
In the field of olefin catalytic polymerization, metallocene catalysts show higher activity than traditional Ziegler-Natta catalysts. In this study, benzoic acid catalyzed the controlled hydrolysis of trimethylaluminum (TMA) to methylaluminoxane (MAO ...
Wu Chaofan   +5 more
doaj   +1 more source

Preparation of PP/2D-Nanosheet Composites Using MoS2/MgCl2- and BN/MgCl2-Bisupported Ziegler–Natta Catalysts

open access: yesCatalysts, 2020
Polypropylene/molybdenum disulfied (PP/MoS2) and Polypropylene/hexagonal boron nitride (PP/hBN) nanocomposites with varying concentration (0–6 wt %) were fabricated via in situ polymerization using two-dimensional (2D)-nanosheet/MgCl2-supported Ti-based ...
Zhang Hexin   +3 more
semanticscholar   +1 more source

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   +1 more source

Comparative simulation study of gas-phase propylene polymerization in fluidized bed reactors using aspen polymers and two phase models [PDF]

open access: yes, 2012
A comparative study describing gas-phase propylene polymerization in fluidized-bed reactors using Ziegler-Natta catalyst is presented. The reactor behavior was explained using a two-phase model (which is based on principles of fluidization) as well as
Hussaina M.A.   +3 more
core   +1 more source

イソニトリルの重合と金属錯体との反応に関する研究 [PDF]

open access: yes, 2009
Trace amounts of Pt- and Ru-doped Ni/Mg(Al)O catalysts were prepared by a citrate method and tested in the oxidative reforming of C3H8 under daily start-up and shut-down (DSS) operation.
Li, Dalin   +6 more
core   +3 more sources

Crystal structures and polymorphism of polymers: Influence of defects and disorder [PDF]

open access: yes, 2018
The crystal structures and the polymorphism of polymers are described on the basis of the main principles that define the conformation of polymer chains in the crystalline state and the modes of packing of macromolecules.
Auriemma, Finizia   +3 more
core   +1 more source

What do We Know about Reaction Mechanism? The Electrospray Ionization Mass Spectrometry Approach [PDF]

open access: yes, 2011
Santos, LS (reprint author), Univ Talca, Lab Asymmetr Synth, POB 747, Talca, Chile.Man's fascination with chemical reactions goes back to ancient times.
Santos, L.S.
core   +2 more sources

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