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RESEARCH PRODUCT

Naturally Occurring Oxazole Structural Units as Ligands of Vanadium Catalysts for Ethylene-Norbornene (Co)polymerization

Katarzyna HalikowskaSławomir WierzbaDawid SiodłakKarolina BanaśWioletta Oche¸dzan-siodłakKarel Doležal

subject

polyethyleneEthyleneSubstituentVanadiumchemistry.chemical_elementTP1-1185010402 general chemistry01 natural sciencesCatalysisCatalysischemistry.chemical_compoundPolymer chemistryCopolymervanadium catalystPhysical and Theoretical ChemistryQD1-999polyethylene; norbornene copolymers; oxazole ligand; vanadium catalyNorborneneOxazole010405 organic chemistryChemical technology0104 chemical sciencesChemistrychemistryPolymerizationnorbornene copolymersoxazole ligand

description

1,3-Oxazole and 4,5-dihydro-1,3-oxazole are common structural motifs in naturally occurring peptides. A series of vanadium complexes were synthesized using VCl3(THF)3 and methyl substituted (4,5-dihydro-1,3-oxazol-2-yl)-1,3-oxazoles as ligands and analyzed using NMR and MS methods. The complexes were found to be active catalysts both in ethylene polymerization and ethylene-norbornene copolymerization. The position of methyl substituent in the ligand has considerable impact on the performance of (co)polymerization reaction, as well as on the microstructure, and thus physical properties of the obtained copolymers.

yearjournalcountryeditionlanguage
2021-07-29Catalysts
10.3390/catal11080923https://www.mdpi.com/2073-4344/11/8/923