| 摘要 |
A catalyst for the homopolymerisation of an alkylene oxide or copolymerisation of two or more alkylene oxides comprises a) a rare earth salt or complex and b) an aluminoxane in hydrocarbon solvent or diluent. The invention includes a process for the polymerisation of alkylene oxide(s) by contacting with said catalyst, or the components thereof, in hydrocarbon solvent or diluent. Component (a) is preferably neodymium naphthenate or neodecanoate. Component (b) is preferably a C2-6 alkyl aluminoxane, e.g. butyl aluminoxane. The alkylene oxide exemplified is propylene oxide. |
