Ethylene polymerization using N-Heterocyclic carbene complexes of silver and aluminum [PDF]
Designed Monomers and Polymers, 2023 Various transition metal catalysts have been utilized for ethylene polymerization. Silver catalysts have attracted less attention as the catalysts, but are potential for production of high molecular weight polyethylene.
Nanako Kimura +6 more
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Synthesis and ethylene polymerization reaction of dendritic titanium catalysts [PDF]
Designed Monomers and Polymers, 2021 The 1.0 G dendrimer (C22H48N10O4),3,5-di-tert-butylsalicylaldehyde and TiCl4 · 2THF were used as the synthetic materials, and the dendritic salicylaldehyde imide ligand with substituent hindrance and its titanium catalyst were synthesized by the ...
Tianyu Lan +3 more
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Selective branch formation in ethylene polymerization to access precise ethylene-propylene copolymers [PDF]
Nature Communications, 2022 Selective branch formation from uncontrolled chain walking is a longstanding challenge to generate exclusively branched polyolefins. Here the authors report such desirable microstructures in ethylene polymerization enabled by a nickel catalyst at 30 °C ...
Yuxing Zhang +2 more
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From radical to reversible-deactivation radical polymerization of ethylene
Progress in Polymer ScienceInternational audienceThe present paper reviews advancements in reversible-deactivation radical polymerization (RDRP) of ethylene. Polyethylene, one of the most produced polymers, is traditionally made using high-pressure radical polymerization (RP) or ...
Florian Baffie +2 more
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Ethylene polymerization and polyethylene functionalization [PDF]
, 2010 Polyolefins have become ubiquitous and are large volume commodity materials. Of current interest is the preparation of speciality polymers incorporating polyethylene (PE), which often requires polymer chain-end manipulation. Ethylene polymerization by a
Marín Càmara, Ariadna
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Catalytic ethylene polymerization
, 2004 In this work a multi purpose setup has been developed for homo- and copolymerizations of ethylene and 1-hexene in slurry and gas phase. Polymerization experiments have been executed in semi-batch mode with a heterogeneous metallocene catalyst under ...
Bergstra, M.F.
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Monomer effect on the chain transfer by diethyl zinc in olefin polymerization by metallocene catalysts [PDF]
Polyolefins Journal, 2021 The present paper systematically studies the homo- and copolymerization of ethylene or propylene using metallocene as catalyst and diethyl zinc as chain transfer agent to obtain the polyolefin waxes with narrow molecular weight distribution and with a ...
Wei Wang, Taoyi Zhang, Liping Hou
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Developments in Binuclear Late Transition Metal Catalysts for Ethylene Homo- and Copolymerization [PDF]
E3S Web of Conferences, 2023 Recent advances in the research of late transition metal (Ni) salicylaldimine bimetallic catalysts in ethylene polymerization and copolymerization of ethylene with comonomers have been introduced. The effect of positioning two polymerization-active metal
Cao Wenyao, Ren Chuanli, Liu Shaofeng
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Compressed ethylene phase states and their importance for the production of low density polyethylene [PDF]
Hemijska Industrija, 2006 In the last three decades the authors have published papers on the concept of the supra-molecular organization and the phase state of compressed ethylene gas and their effects on the mechanism and kinetics of free-radical ethylene polymerization.
Stoiljković Dragoslav +4 more
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Substituent effect of Cp2TiCl2 catalyst for ethylene polymerization: A DFT study [PDF]
Polyolefins Journal, 2023 The substituents on cyclopentadienyl (Cp) can regulate the electronic effect and hindrance of the active center in the metallocene catalyst. This modification can greatly change the catalytic activity of the catalyst and affect some features of the ...
Kefeng Xie +5 more
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