| abstract |
A novel α-olefin/aromatic vinyl copolymer which is obtained through copolymerization using a transition metal compound represented by general formula (1) and a promoter. It has low alternation and especially has a high block content regarding the aromatic vinyl. In the formula (1), A?1 and A2¿ each represents cyclopentadienyl, substituted cyclopentadienyl, etc.; Y?1 and Y2¿ each represents (un)substituted alkylene, etc., provided that at least either is (un)substituted alkylene; M1 represents titanium, etc.; and X?1 and X2¿ each represents hydrogen, halogeno, etc. |