Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I)
In which X and Y are selected from, R
1
, and —OR
1
and —NR
2
, B is oxygen or sulphur S is sulphur, R
1
is selected from C
1
-C
15
hydrocarbon groups, optionally contain a heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more cycles, R is hydrogen or R
1
and A is a bivalent bridging group with chain length between the two bridging bonds being 1-10 atoms.
聚烯烃催化剂组分,包括Mg、Ti和式(I)的电子给体,其中X和Y选自R1、—OR1和—NR2,B为氧或
硫,S为
硫,R1选自C1-C15的碳氢基团,可选地包含从卤素、P、S、N、O和Si中选择的杂原子,这些杂原子可以融合在一起形成一个或多个环,R为氢或R1,A是一个双价桥接基团,其链长在两个桥接键之间为1-10个原子。