| abstract |
The present invention relates to a metal compound (A) containing terbium, lanthanum, dysprosium, praseodymium, holmium, erbium, thulium, or gadolinium, an ionic compound (B) comprising a non-coordinating anion and a cation, and a periodic table. An organometallic compound (C) of an element selected from Group 2, 12 and 13; a conjugated diene polymerization catalyst characterized by comprising a conjugated diene polymer and a modified conjugated diene polymer using the same. The present invention relates to a production method, a conjugated diene polymer, and a modified conjugated diene polymer. |