| abstract |
The invention relates to a dinuclear rare earth catalyst, a preparation method thereof and a polymerization method of syndiotactic polystyrene, the catalyst is a trivalent dinuclear rare earth complex with the general formula [(R 2 LnLLnR 2 )(S) n ]; wherein, L is a cyclopentadienyl derivative, indenyl, indenyl derivative, fluorenyl, fluorenyl derivative or amidinyl derivative bridged with ferrocene; Ln is a rare earth metal; R is a rare earth metal Alkyl group, amino group or halogen; S is selected from diethyl ether, tetrahydrofuran, ethylene glycol dimethyl ether or tetramethylethylenediamine; 0≤n≤4. |