Hybrid supported catalyst and method of preparing polyolefin using the same

A hybrid supported catalyst comprising:

• one or more of a first transition metal compound represented by Chemical Formula 1;
• one or more of a second transition metal compound represented by Chemical Formula 2;
• and
• a support on which the first and second transition metal compounds are supported:
• (Cp1R11)m(Cp2R12)M1(Z1)3-m [Chemical Formula 1]
• in Chemical Formula 1,
• M1 is a transition metal of Group 4;
• Cp1 and Cp2 are the same as or different from each other, and each independently, any one selected from the group consisting of cyclopentadienyl, indenyl, 4,5,6,7-tetrahydro-1-indenyl, and fluorenyl radicals, which are unsubstituted or substituted with C1-20 hydrocarbon;
• R11 and R12 are the same as or different from each other, and each independently, hydrogen, C1-20 alkyl, C1-20 alkoxy, C2-20 alkoxyalkyl, C6-20 aryl, C6-20 aryloxy, C2-20 alkenyl, C7-40 alkylaryl, C7-40 arylalkyl, C8-40 arylalkenyl, C2-20 alkynyl, or C2-20 heteroaryl comprising one or more heteroatoms of N, O, or S;
• Z1 is halogen, C1-20 alkyl, C2-20 alkenyl, C7-40 alkylaryl, C7-40 arylalkyl, C6-20 aryl, an amino group, C2-20 alkylalkoxy, or C7-40 arylalkoxy;
• and
• m is 1 or 0;
• in Chemical Formula 2,
• A is carbon or silicon,
• M2 is a transition metal of Group 4,
• R21 is C6-20 aryl substituted with C1-20 alkyl,
• R22 is C3-20 branched alkyl,
• R23 to R25 are each independently C1-20 alkyl,
• Z21 and Z22 are each independently halogen or C1-10 alkyl, and
• n is an integer of 1 to 10.