Ni-Pd metal complex as well as preparation method, application and product thereof and application of product

Abstract

The invention relates to a Ni-Pd metal complex as well as a preparation method, application and a product thereof and application of the product. The Ni-Pd complex is prepared through reaction of a phenylenediamine imidazolidine ligand and a metal precursor, and the structural formula of the prepared Ni-Pd metal complex is shown as follows: (the formula is shown in the description), wherein in theformula, R1-R12 are independently selected from hydrogen, alkyl, substituendum of alkyl, alkoxy, alkyl sulphanyl, halogen, nitryl, aryl and substituendum of aryl, M is Ni<2+> or Pd<2+>, and X and Y are independently selected from halogen and alkyl. The product of the Ni-Pd metal complex is mainly obtained by compounding the Ni-Pd metal complex and a promoter, and the Ni-Pd metal complex and the product thereof can both be used for catalyzing polymerization of olefine monomer. The method is easy to operate, the prepared Ni-Pd metal complex and the product thereof have high activity and good thermal stability, the number-average molecular weight and the insertion rate of the olefine polymer obtained through catalysis are high when the Ni-Pd metal complex is used for catalyzing the olefine monomer, and the Ni-Pd metal complex has very good popularization value.

Description

technical field [0001] The invention belongs to the field of olefin catalysis, and relates to a nickel-palladium metal complex and its preparation method, application, product and application of the product. Background technique [0002] Polyolefin has become the polymer material with the largest production volume, the fastest development speed and the most widely used. Its output accounts for more than one-third of the total polymer materials in the world. Among them, coordination polymerization catalysts are the core of the development of the polyolefin industry. . [0003] Polyolefin catalysts include Ziegler-Natta type heterogeneous catalysts (DE Pat 889229 (1953)), metallocene catalysts (Kaminsky.W., Berlin: Springer, 1999.), non-procene transition metal catalysts (Yasunori Y, Organometallics, 2001,20(23):4793-4799), late transition metal catalysts (Brookhart M., J.Am.Chem.Soc, 1995,117(23):6414-6415). Among them, late-transition metal catalysts have attracted extensi...

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Problems solved by technology

The researchers introduced the above structure into ligands to synthesize transition metal olefin polymerization catalysts with various structures. These catalysts have many excellent properties, even comparable to classic metallocene catalysts, and can make α-olefins and vinyl polar monomers Direct copolymerization, but low activity, uncontrollable regioselectivity and stereoregularity of polar monomers, nitrogen heterocyclic carbene is easy to decompose due to self-reduction elimination, and it can catalyze olefin monomers such as norbornene at high temperature less active

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