Results 41 to 50 of about 115,445 (306)

Intelligent catalysts for ethylene oligomerization and polymerization [PDF]

open access: yesPolyolefins 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

open access: yesMolecules, 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   +3 more
doaj   +1 more source

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

open access: yesData 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   +5 more
doaj   +1 more source

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

open access: yesGiant, 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

Platelet deposition studies on copolyether urethanes modified with poly(ethylene oxide) [PDF]

open access: yes, 1990
Pellethane ® 2363 80A films and tubings were chemically modified and the effect of these modifications on platelet deposition was studied. Grafting of high molecular weight poly(ethylene oxide) and graft polymerization of methoxy poly(ethylene glycol ...
Bantjes, A.   +3 more
core   +3 more sources

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

open access: yesInternational 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   +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]

open access: yesعلوم 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

open access: yesAdvances 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   +2 more
doaj   +1 more source

Functional poly(2-oxazoline)s by direct amidation of methyl ester side chains [PDF]

open access: yes, 2015
Poly(2-alkyl/aryl-2-oxazoline)s (PAOx) are biocompatible pseudopolypeptides that have received significant interest for biomedical applications in recent years.
Hoogenboom, Richard, Mees, Maarten
core   +2 more sources

Dinickel Bisphenoxyiminato Complexes for the Polymerization of Ethylene and α-Olefins [PDF]

open access: yes, 2012
Dinuclear nickel phenoxyiminato olefin polymerization catalysts based on rigid p-terphenyl frameworks are reported. Permethylation of the central arene of the terphenyl unit and oxygen substitution of the peripheral rings ortho to the aryl–aryl linkages ...
Agapie, Theodor   +2 more
core   +1 more source

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