| abstract |
The present disclosure relates to a solid catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of the formula (I): n nwhere each Q is a group —COOR 1 , in which R 1 is selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from the group consisting of halogens, P, S, N and O; or a group —CON(R 2 ) 2 , in which R 2 groups, equal to or different from each other, are hydrogen or R 1 groups which can be fused together to form one or more cycles, and A is a bivalent bridging group with the proviso that the Q groups cannot be simultaneously a group —COOR 1 or —CON(R 2 ) 2 . |