| abstract |
The present invention provides a catalyst composition for preparing a conjugated diene polymer and a conjugated diene polymer prepared by means of same, the conjugated diene polymer comprising a functional group agent in the following chemical formula (1) as well as a rare earth metal compound, an alkylating agent and a halogen compound, showing excellent catalyst activity and polymerization reactivity, and having high linearity and excellent processability.nChemical formula (1): (X 1 ) a -Si-(X 2 ) 4-a , wherein a, X 1 and X 2 are as defined in the description. |