5,6,7,8-tetrahydro-1-naphthol-phosphine post-transition metal complexes, preparation method therefor, and use thereof

Abstract

5,6,7,8-tetrahydro-1-naphthol-phosphine post-transition metal complexes are olefin polymerization catalysts of formula (I), in which R7-R11 are selected from hydrogen, halogens, hydroxyl, and substituted or unsubstituted C1-C15 hydrocarbyls, and R2 and R3 are selected from halogens, C1-C10 hydrocarbyls, P(R4)3, NR5R6 and OR12R13, wherein R4 is selected from substituted or unsubstituted C1-C10 hydrocarbyls, and R5, R6, R12 and R13 are selected from C1-C6 hydrocarbyls, or R5 and R6 are linked to N to form a five-membered ring or six-membered ring, or R12 and R13 are linked to O to form a five-membered ring or six-membered ring. These complexes have good thermal stability, high ethylene polymerization activity at relatively high temperatures, and has a good property of copolymerization with acrylate type monomers. The preparation method for the complexes and use thereof are provided.

Dependencies are inferred from the claim text.