| abstract |
PROBLEM TO BE SOLVED: To provide a novel metallocene compound having a Cs symmetric structure for synthesizing a syndiotactic α-olefin polymer and a method for polymerizing an olefin or a diene using the same. SOLUTION: Formula [1] (Wherein R 1 and R 2 are hydrogen, alkyl or aryl, R 3 is alkyl or silicon-containing alkyl, R 4 , R 5 , R 6 , R 7 and R 8 are hydrogen, alkyl, aryl, or silicon-containing alkyl, M is a metal of Group 4 of the periodic table, Y is divalent carbon or silicon, and X is the same or different A halogen, alkyl or anionic ligand, and m is an integer of 1 to 3. And a method for polymerizing an olefin or a diene using the same. |