反应 #8485

反应方程式

ethylene

1-octene

ENB

ethylidenenorbornene

Hydrogen

ethylene

methyldi(octadecyl)-ammonium tetrakis(pentafluoro-phenyl)borate

ENB

→

Ethylene/1-Octene

溶剂

—

alkanes

toluene

toluene

反应条件

后处理

1. 1
   其他Catalyst components are handled in a glovebox
2. 2
   workup.ADDITIONcontaining an atmosphere of argon or nitrogen
3. 3
   workup.ADDITION1 molar ratio and transferred to a catalyst addition tank
4. 4
   其他The polymerization conditions
5. 5
   workup.ADDITIONadded on demand
6. 6
   其他The resulting solution was removed from the reactor
7. 7
   其他quenched with isopropyl alcohol
8. 8
   workup.ADDITIONstabilized by addition of a toluene solution
9. 9
   workup.ADDITIONcontaining 67 mg/100 g polymer of a hindered phenol antioxidant (Irganox™ 1010 from Ciba Geigy Corporation) and 133 mg/100 g polymer of a phosphorus stabilizer (Irgafos™ 168 from Ciba Geigy Corporation)
10. 10
    其他Between sequential polymerization
11. 11
    workup.ADDITIONwas added to the reactor

实验过程

All liquids except ethylidenenorbornene (ENB) and gas feeds were passed through columns of alumina and a decontaminant (Q-5™ catalyst available from Englehardt Chemicals Inc.) prior to introduction into the reactor. ENB was passed through a short column (3×10 cm) of alumina prior to introduction to the reactor. Catalyst components are handled in a glovebox containing an atmosphere of argon or nitrogen. A stirred 2.0 liter reactor is charged with 640 g of mixed alkanes solvent, 150 g of 1-octene and 16 g of ENB. Hydrogen (20 psi, 140 kPa) is added as a molecular weight control agent by differential pressure expansion from a 75 mL addition tank. The reactor is heated to 100° C. and saturated with ethylene at 500 psig (3.5 MPa). Metal complex as dilute toluene solution and cocatalyst as dilute solutions in toluene were mixed in a 1:1 molar ratio and transferred to a catalyst addition tank and injected into the reactor. The cocatalyst was methyldi(octadecyl)-ammonium tetrakis(pentafluoro-phenyl)borate (DAB), the ammonium cation of which is derived from a mixture of amines available commercially as methyl bis(tallow)amine. The polymerization conditions were maintained for 15 minutes with ethylene added on demand. The resulting solution was removed from the reactor, quenched with isopropyl alcohol, and stabilized by addition of a toluene solution containing 67 mg/100 g polymer of a hindered phenol antioxidant (Irganox™ 1010 from Ciba Geigy Corporation) and 133 mg/100 g polymer of a phosphorus stabilizer (Irgafos™ 168 from Ciba Geigy Corporation). Between sequential polymerization runs, a wash cycle was conducted in which 850 g of mixed alkanes was added to the reactor and the reactor was heated to 130° C. The reactor was then emptied of the heated solvent immediately before beginning a new polymerization run.

来源