Diverse functional polyethylenes by catalytic amination. [PDF]
Science, 2023 Functional polyethylenes possess valuable bulk and surface properties, but the limits of current synthetic methods narrow the range of accessible materials and prevent many envisioned applications.
Ciccia NR +10 more
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Conversion of Polyethylenes into Fungal Secondary Metabolites. [PDF]
Angew Chem Int Ed Engl, 2023 Waste plastics represent major environmental and economic burdens due to their ubiquity, slow breakdown rates, and inadequacy of current recycling routes.
Rabot C +7 more
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Photodegradable branched polyethylenes from carbon monoxide copolymerization under benign conditions
Nature Communications, 2020 Small amounts of in-chain keto groups render polyethylene (PE) photodegradable, a desirable feature in view of environmental plastics pollution. Here the authors introduce low ketone content by copolymerization in organic solvent or under aqueous ...
Tobias O. Morgen +3 more
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Tuning 2,3-Bis(arylimino)butane-nickel Precatalysts for High-Molecular-Weight Polyethylene Elastomers [PDF]
MoleculesThe catalytic performance of α-diiminonickel complexes is highly sensitive to structural modifications in their ligand frameworks. In this study, a series of unsymmetrical 2,3-bis(arylimino)butane-nickel complexes featuring ortho-2,6-dibenzhydryl groups ...
Dongzhi Zhu +5 more
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Controlled Copolymerization of Ethylene and Biosourced Comonomers Using Dibenzobarrelene-Based α-Diimine Nickel Catalyst [PDF]
MoleculesThe development of earth-abundant nickel-based catalysts is currently one of the greatest challenges for the straightforward synthesis of functionalized polyolefins.
Handou Zheng +6 more
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Cyano-functionalized polyethylenes from ethylene/acrylamide copolymerization [PDF]
Nature CommunicationsSynthesizing functionalized polyethylenes via ethylene coordination copolymerization with fundamental low-cost vinyl polar monomers provides a very attractive approach.
Shu-Yang Yu +10 more
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Finely-Tuned Bis(imino)pyridylcobalt Complexes Enhance Ethylene Polymerization: The Role of Bulky and Halogen Substituents [PDF]
MoleculesThe bis(imino)pyridylcobalt complexes have been finely tuned through using the aniline derivative bearing a meta-chloro substituent, besides its ortho- and para-di(4-fluorophenyl)methyl and ortho-methyl substituents for the series of 2-[1-(3-chloro-4,6 ...
Elizabeth Ogbe +5 more
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Correlation of cross-linking as measured by the trans-vinylene index and in vitro wear of polyethylene from various acetabular liner brands [PDF]
Bone & Joint ResearchAims: Highly cross-linked polyethylene (HXLPE) greatly reduces wear in total hip arthroplasty, compared to conventional polyethylene (CPE). Cross-linking is commonly achieved by irradiation. This study aimed to compare the degree of cross-linking and in
Peter Wahl +8 more
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N,N-Bis(2,4-Dibenzhydryl-6-cycloalkylphenyl)butane-2,3-diimine–Nickel Complexes as Tunable and Effective Catalysts for High-Molecular-Weight PE Elastomers [PDF]
Molecules, 2023 Four examples of N,N-bis(aryl)butane-2,3-diimine–nickel(II) bromide complexes, [ArN=C(Me)-C(Me)=NAr]NiBr2 (where Ar = 2-(C5H9)-4,6-(CHPh2)2C6H2 (Ni1), Ar = 2-(C6H11)-4,6-(CHPh2)2C6H2 (Ni2), 2-(C8H15)-4,6-(CHPh2)2C6H2 (Ni3) and 2-(C12H23)-4,6-(CHPh2)2C6H2
Shu Jiang +9 more
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Upcycling polyethylene into closed-loop recyclable polymers through titanosilicate catalyzed C-H oxidation and in-chain heteroatom insertion [PDF]
Nature CommunicationsPolyolefins are the most widely produced type of plastics owing to their low production cost and favorable properties. Their polymer backbone consists solely of inert C-C bonds, making them resistant and durable materials.
Robin Lemmens +3 more
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