| 摘要 |
PURPOSE: A metallocene catalyst for polyolefin is provided to have simple structure with high activity, and to effectively manufacture an isotactic polypropylene with high tacticity in homogeneous or heterogeneous phase. CONSTITUTION: A metallocene catalyst for polyolefin comprise a metallocene transition metal compound having a bridge comprising a phenyl group combined with a heteroatom in chemical formula 1, and a cocatalyst. In chemical formula 1, M is an element selected from group 3-10, Cp1 and Cp2 are respectively a ligand having cyclopentadienyl structure, X is a C1-20 alkyl group, alkylsilyl group, silylalkyl group, a C3-20 cycloalkyl group, a C6-20 aryl group, a C7-20 arylalkyl group, alkylaryl group, arylsilyl group, silylaryl group, a C1-20 alkoxy group, alkylsiloxy group, a C6-20 aryloxy group, a halogen group, an amino group, or a tetrahydroborate group, n is an integer from 1-5, and Q comprises a structure in chemical formula 2. |
