Results 31 to 40 of about 50,243 (307)

Field Desorption Mass Spectrometric Analysis of Ethylene Polymerization Initiated by the Anthracenide Yttrium Complex, (C5H5)Y(C14H10)(THF)2.

, 2023
Yttrium anthracenide complex CpY(C14H10)(THF)2 (1) catalyzes ethylene polymerization under mild conditions. The initiation polymerization step has been modeled by a reaction of 1 and of its Lu analog (3) with t-BuCN, resulting in the formation of mono ...
Dmitrii, Roitershtein, Mikhail, Minyaev, Daniil, Bardonov   +2 more
core   +1 more source

Homo-polymerization of α-Olefins and Co-polymerization of Higher α-Olefins with Ethylene in the Presence of CpTiCl2(OC6H4X-p)/MAO Catalysts (X = CH3, Cl)

Molecules, 2005
Cyclopentadienyl-titanium complexes containing –OC6H4X ligands (X = Cl,CH3) activated with methylaluminoxane (MAO) were used in the homo-polymerizationof ethylene, propylene, 1-butene, 1-pentene, 1-butene, and 1-hexene, and also in co-polymerization
Z. Wieczorek, D. Jamanek, K. Nicinski, W. Skupinski   +3 more
doaj   +1 more source

The Influence of Mixed Activators on Ethylene Polymerization and Ethylene/1-Hexene Copolymerization with Silica-Supported Ziegler-Natta Catalyst

Molecules, 2010
This article reveals the effects of mixed activators on ethylene polymerization and ethylene/1-hexene copolymerization over MgCl2/SiO2-supported Ziegler-Natta (ZN) catalysts. First, the conventional ZN catalyst was prepared with SiO2 addition.
Piyasan Praserthdam, Nichapat Senso, Bunjerd Jongsomjit, Supaporn Khaubunsongserm   +3 more
doaj   +1 more source

Intelligent catalysts for ethylene oligomerization and polymerization [PDF]

Polyolefins Journal, 2015
EEthylene polymerization catalysts became available in an enormous variety. The challenge in this research is to find catalysts that are able to connect ethylene molecules in such a way that not only linear chains are produced but variations like ...
Helmut G. Alt
doaj   +1 more source

Direct Synthesis of Polyethylene Thermoplastic Elastomers Using Hybrid Bulky Acenaphthene-Based α-Diimine Ni(II) Catalysts

Molecules, 2023
Recently, polyolefin thermoplastic elastomers can be obtained directly using ethylene as a single feedstock via α-diimine nickel-catalyzed ethylene chain walking polymerization.
Hui Wang, Weiqing Lu, Mingmin Zou, Shengyu Dai   +3 more
doaj   +1 more source

Data for quantum-chemical modeling of the mechanisms of ring-opening polymerization of methyl ethylene phosphate

Data in Brief, 2019
The data presented in this paper are related to the research article entitled ''Mechanistic study of transesterification in TBD-catalyzed ring-opening polymerization of methyl ethylene phosphate'' (Nifant'ev et al., 2019).
Ilya E. Nifant'ev, Andrey V. Shlyakhtin, Maxim A. Kosarev, Pavel D. Komarov, Stanislav G. Karchevsky, Pavel V. Ivchenko   +5 more
doaj   +1 more source

ICAR ATRP-induced surface self-assembly in the fabrication of the surface nanostructures

Giant, 2022
Polymerization induced surface self-assembly (PISSA) technology is a state-of-the-art method in the fabrication of the hierarchical surface nanostructures.
Chen Wang, Haoran Deng, Hanying Zhao
doaj   +1 more source

Effect of Polymerization Conditions on Thermal and Mechanical Properties of Ethylene/1-Butene Copolymer Made with Ziegler-Natta Catalysts

International Journal of Polymer Science, 2014
The effect of polymerization conditions on thermal and mechanical properties of ethylene/1-butene copolymers synthesized through titanium-magnesium-supported Ziegler-Natta catalysts was studied.
Mostafizur Rahaman, M. Anwar Parvez, J. B. P. Soares, I. A. Hussein   +3 more
doaj   +1 more source

Study of Ethylene Polymerization Kinetics by TiCl4/Mg(OC2H5)2 Catalyst and Determination of the Active Sites Concentration [PDF]

علوم و تکنولوژی پلیمر, 2008
Ethylene was polymerized in slurry phase over a TiCl4/Mg(OC2H5)2 catalyst activated by Al(C2H5)3. It was shown experimentally that mass transfer resistance has no effect on polymerization kinetics.
S. Hakim, M.M. Mortazavi
doaj   +1 more source

Ethylene Polymerization through Neutral Nickel Complexes Bearing Cyclic Imides

Advances in Polymer Technology, 2022
The catalyst synthesis of salicylaldimine Ni(II) complexes with bulky imide moieties, ethylene polymerization, and characterization of synthesized polyethylenes are described in this paper.
Hassan Arabi, Maryam Sadat Beheshti, Amin Manteghi   +2 more
doaj   +1 more source