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 language | English |
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Pages (from-to) | 993-998 |
Number of pages | 6 |
Journal | Zeitschrift für Allgemeine und Anorganische Chemie (ZAAC) |
Volume | 644 |
Issue number | 17 |
DOIs | |
Publication status | Published - 17 Sept 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