Novel nickel complexes with hyperbranched structure: Synthesis, characterization and performance in ethylene oligomerization

Two novel nickel complexes with hyperbranched structure were synthesized with hyperbranched molecules as bridged groups. With MAO as co-catalyst and toluene as solvent, the two hyperbranched nickel complexes showed high activities and selectivities of C8+ oligomers. Moreover, the hyperbranched nickel complex with 1-dodecylamine as core showed higher activity than the hyperbranched nickel complex with 1-octadecylamine as core at the same conditions.54