CATALYST FOR OLEFIN POLYMERIZATION AND PRODUCTION METHOD FOR OLEFIN-BASED POLYMER
Provided are a catalyst and a method that enable the production of an olefin-based polymer, which has a polar group and is usable for various applications, at high catalytic activity. A metal complex shown in general formula (C1) (in the formula, M represents a palladium atom or a nickel atom, X represents a phosphorus atom (P), R 5 -R 9 are as set forth in the claims, L represents an electron donating ligand, and q is 0, ½, 1, or 2) is used as a catalyst for polymerization of an olefin having a polar group.
1 . A catalyst for olefin polymerization, comprising a metal complex represented by General Formula (C1):
where in General Formula (C1), M represents a palladium atom or a nickel atom; X represents a phosphorus atom (P); R 5 represents a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 30 carbon atoms, a hydrocarbon group having 1 to 30 carbon atoms substituted with a halogen atom, a hydrocarbon group having 2 to 30 carbon atoms substituted with an alkoxy group having 1 to 10 carbon atoms, a hydrocarbon group having 7 to 30 carbon atoms substituted with an aryloxy group having 6 to 20 carbon atoms, a hydrocarbon group having 3 to 30 carbon atoms substituted with an amido group having 2 to 10 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, an aryloxy group having 6 to 30 carbon atoms, and an acyloxy group having 2 to 10 carbon atoms; R 6 and R 7 each independently represent an alkoxy group, an aryloxy group, a silyl group, an amino group, or a hydrocarbon group having 1 to 180 carbon atoms optionally substituted with one or more groups selected from a hydroxy group, a halogen atom, an alkoxy group, an aryloxy group, and an acyloxy group; R 8 and R 9 each independently represent a hydrogen atom or a halogen atom; and L represents an electron-donating ligand, and q is 0, ½, 1, or 2.
2 . The catalyst for olefin polymerization according to claim 1 , wherein R 8 and R 9 in General Formula (C1) are each independently a hydrogen atom or a chlorine atom.
3 . The catalyst for olefin polymerization according to claim 2 , wherein one of R 8 and R 9 in General Formula (C1) is a hydrogen atom, and the other is a chlorine atom.
4 . The catalyst for olefin polymerization according to claim 2 , wherein both of R 8 and R 9 in General Formula (C1) are chlorine atoms.
5 . The catalyst for olefin polymerization according to claim 1 , wherein R 6 and R 7 in General Formula (C1) are each independently an alkyl group, a fluoroalkyl group, a cycloalkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or an aryl group optionally having a substituent.
6 . The catalyst for olefin polymerization according to claim 1 , wherein both of R 6 and R 7 in General Formula (C1) are isopropyl groups, t-butyl groups, menthyl groups, 2,7-di-t-butyl-9-fluorenyl groups, diphenylmethyl groups, 2-methoxyphenyl groups, or 2-isopropylphenyl groups.
7 . A method for producing an ethylene homopolymer, a copolymer of ethylene and an olefin having a polar group, or a copolymer of ethylene, the olefin having a polar group, and another monomer, the method comprising using a metal complex represented by General Formula (C1) as a polymerization catalyst:
where in General Formula (C1), symbols represent the same meanings as in claim 1 , and
the olefin is represented by General Formula (1):
where in General Formula (1), R 1 represents a substituent selected from the group consisting of a hydroxy group, an alkoxy group having 1 to 10 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an acyl group having 2 to 10 carbon atoms, an ester group having 2 to 10 carbon atoms (oxycarbonyl group; R—O—(C═O)—, R represents an organic group), an acyloxy group having 2 to 10 carbon atoms, an amino group, a substituted amino group having 1 to 12 carbon atoms, a substituted amido group having 2 to 12 carbon atoms, a substituted pyridyl group having 5 to 10 carbon atoms, a substituted pyrrolidyl group having 4 to 10 carbon atoms, a substituted piperidyl group having 5 to 10 carbon atoms, a substituted hydrofuryl group having 4 to 10 carbon atoms, a substituted imidazolyl group having 4 to 10 carbon atoms, a mercapto group, an alkylthio group having 1 to 10 carbon atoms, an arylthio group having 6 to 10 carbon atoms, an epoxy group, and a halogen atom, and n is an integer selected from 0 to 6.
8 . The method according to claim 7 , wherein n in General Formula (1) is 0.
9 . The method according to claim 7 , wherein n in General Formula (1) is 1.
10 . The method according to claim 7 , wherein R 8 and R 9 in General Formula (C1) are each independently a hydrogen atom or a chlorine atom.
11 . The method according to claim 10 , wherein one of R 8 and R 9 in General Formula (C1) is a hydrogen atom, and the other is a chlorine atom.
12 . The method according to claim 10 , wherein both of R 8 and R 9 in General Formula (C1) are chlorine atoms.
13 . The method according to claim 7 , wherein R 6 and R 7 in General Formula (C1) are each independently an alkyl group, a fluoroalkyl group, a cycloalkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or an aryl group optionally having a substituent.
14 . The method according to claim 7 , wherein both of R 6 and R 7 in General Formula (C1) are isopropyl groups, t-butyl groups, menthyl groups, 2,7-di-t-butyl-9-fluorenyl groups, diphenylmethyl groups, 2-methoxyphenyl groups, or 2-isopropylphenyl groups.