| 摘要 |
A solid catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I), where each Q is a group –COOR1 in which R1 is selected from C1-C15 hydrocarbon groups, optionally containing a heteroatom selected from halogen, P, S, N,O; or a group –CON(R2)2 in which R2 groups, equal to or different from each other, are hydrogen or R1 groups which can be fused together to form one or more cycles, and A is a bivalent bridging group with the proviso that Q groups cannot be simultaneously a group – COOR1 or –CON(R2)2. |
