Transition metal catalyst composition including a transition metal compound and a method of preparing a polyolefin using the catalyst composition

摘要

The present invention relates to a transition metal catalyst composition which can exhibit high reactivity in a polymerization reaction of a polyolefin and can easily control characteristics such as chemical structure, molecular weight distribution, mechanical properties, and the like of a synthesized polyolefin, and a method of preparing a polyolefin using the catalyst composition.

主权项

1. A transition metal catalyst composition including a transition metal compound of the following Chemical Formula 1, a co-catalyst, and an organic solvent: wherein, in Chemical Formula 1, R1 is a C1-C10 alkyl unsubstituted or substituted with a halogen group, a C5-C60 cycloalkyl unsubstituted or substituted with a halogen group, a C6-C60 aryl unsubstituted or substituted with a halogen group, a C5-C60 cycloalkenyl unsubstituted or substituted with a halogen group, a C2-C20 alkenyl unsubstituted or substituted with a halogen group, a C7-C60 alkylaryl unsubstituted or substituted with a halogen group, or a C7-C60 arylalkyl unsubstituted or substituted with a halogen group; Q1, Q2, Q3, Q4, Q5, and Q6 may be the same as or different from each other and are independently hydrogen, deuterium, a halogen group, a nitrile group, an acetylene group, an amine group, an amide group, a C1-C20 alkoxy carbonyl group, a C1-C20 alkanoyl group, a silyl group, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C6-C20 aryl group, a C4-C20 heteroring group, a C1-C20 alkoxy group, or a C6-C20 aryloxy group, and 2 or more of Q1, Q2, Q3, Q4, Q5, and Q6 may be connected to each other so as to form an aliphatic ring or an aromatic ring; Cy1 and Cy2 may be the same as or different from each other and are independently a C4-C10 aliphatic ring which includes a nitrogen atom and is unsubstituted or substituted with one or more functional groups selected from the group consisting of hydrogen, a halogen, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C7-C20 alkylaryl, a C7-C20 arylalkyl, a C1-C20 alkoxy group, a C6-C20 aryloxy group, and a C6-C20 aryl group, and if there are two or more functional groups substituted in the aliphatic ring, they may be connected to each other so as to form an aliphatic ring or an aromatic ring; M is a group 3 to 12 transition metal; Y1 is nitrogen or phosphorus; M and Y1 form a coordinate bond; and X1 and X2 may be the same as or different from each other and are independently a halogen, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C6-C20 aryl group, a C7-C20 alkylaryl group, a C7-C20 arylalkyl group, a C1-C20 alkylamido group, a C6-C20 arylamido group, or a C1-C20 alkylidene group.