Ethylene → Ethene propene 1-butene

Participants

Reaction Conditions

Reaction Steps

500 ml of dry hexane, 240 g of 1-butene, and 1.0 mmol of triisobutylaluminum were introduced at normal temperature into a polymerization apparatus (polymerization vessel) having a volume of 2000 ml thoroughly purged with nitrogen. Then, the temperature inside the polymerization vessel was raised to 35° C., and the polymerization vessel was pressurized with propylene to 0.6 MPa, and subsequently pressurized with supplied ethylene to 0.62 MPa. Thereafter, a toluene solution in which 0.005 mmol of diphenylmethylene(cyclopentadienyl)fluorenylzirconium dichloride and 1.5 mmol, relative to aluminum, of methylaluminoxane (manufactured by Tosoh Finechem Corp.) were contacted with each other was added to the polymerization vessel, and polymerization was conducted for 5 minutes while maintaining the internal temperature at 35° C. and the polymerization vessel pressure at 0.62 MPa by supplying ethylene. 20 ml of methanol was added to terminate the polymerization. After depressurizing, a polymer was precipitated out from the polymerization solution in 2 L of methanol, and was dried under vacuum at 130° C. for 12 hours.

Provenance & Evidence