| 摘要 |
Copolymers of carbon monoxide with one or more mono-olefins having at least three carbon atoms in the molecule are prepared by copolymerization of the monomers in the presence of a catalyst composition based upon a) a palladium compound, b) an anion of an acid having a pKa < 2, and c) a bisphosphine of formula (R<2>)2P-R-P(R<2>)2, where R is a bivalent bridging group having at least two C-atoms in the bridge, and R<2> is an optionally polar-substituted aliphatic hydrocarbyl group, and in the additional presence of a compound of formula C(X)(Y)(OR<3>)2 wherein X = H or hydrocarbyl, Y = H, hydrocarbyl or OR<3>, and R<3> = hydrocarbyl. |
