| 摘要 |
A solid catalyst component which exhibits high activity and stereo specificity polymerization of olefins comprising Mg, Ti and an electron donor of formula (I) where R and R1 are selected from C1-C20 hydrocarbon groups C6-C14 aryl or alkylaryl groups hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N,O; R2 to R11 groups, equal to or different from each other, are hydrogen, halogen or C1-C15 hydrocarbon groups which can be optionally fused together to form one or more cycles with the proviso that R6 and R11 cannot join together to form a phenyl ring. |
