| 摘要 |
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I) Where R 1 and R 2 , independently, are selected from are selected from hydrogen and C 1 -C 15 hydrocarbon groups, optionally contain an heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more closed cycles and A is a bivalent bridging group. |
