Synthesis of Disentangled Ultra-High Molecular Weight Polyethylene using Vanadium(V)-Based Catalysts

Mitch Spronck, Axel Klein, Burgert Blom*, Dario Romano*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Web of Science)

Abstract

Two known imido vanadium (V) trichloride complexes [Cl3V=N-C6H3-2,6-Me2] (1) and [Cl3V=N-C6H3-2,6-iPr2] (2), both of which have escaped testing as ethylene polymerization catalyst precursors, were synthesized and their capacity to polymerize ethylene in the presence of the co-catalyst MAO (methylaluminoxane) (Al:V ratio: 1000:1) at 10 oC is reported. The resulting polymers, from both pre-catalysts, have molecular weights exceeding 1-2 million g/mol as suggested by the insolubility at high temperature and rheological measurements. According to the rheological and DSC annealing characterizations the synthesized UHMWPE from both 1 and 2 show features of a high degree of disentanglement.

Original languageEnglish
Pages (from-to)993-998
Number of pages6
JournalZeitschrift für Allgemeine und Anorganische Chemie (ZAAC)
Volume644
Issue number17
DOIs
Publication statusPublished - 17 Sep 2018

Keywords

  • Disentangled
  • Ultra-high molecular weight polyethylene (UHMWPE)
  • Homogeneous catalysis
  • Rheology
  • Differential scanning calorimetry
  • OPENING METATHESIS POLYMERIZATION
  • TRANSITION METAL CATALYSTS
  • ETHYLENE POLYMERIZATION
  • OLEFIN POLYMERIZATION
  • COMPLEXES SYNTHESIS
  • MOLAR-MASS
  • VANADIUM
  • ALUMINUM
  • IMIDO
  • STATE

Cite this