| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for producing a conjugated diene polymer with high content of cis-1,4-structure by using a catalyst containing an yttrium compound. <P>SOLUTION: This method for producing a conjugated diene polymer is characterized by polymerizing a conjugated diene compound by using a catalyst obtained from (A) an yttrium compound having a bulky ligand including an aromatic ring; (B) an ionic compound comprising a non-coordinating anion and cation; and (C) an organometallic compound of an element selected from groups 2, 12 and 13 of the periodic table. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
