abstract |
(57) [Problem] To provide an α-olefin / cyclic olefin copolymer having a very narrow molecular weight distribution. To provide a method for producing the α-olefin / cyclic olefin copolymer with high polymerization activity. The α-olefin / cyclic olefin copolymer comprises: (A) at least one kind of structural unit selected from the group consisting of linear or branched α-olefins having 2 to 30 carbon atoms; (B) an α-olefin / cyclic olefin copolymer comprising at least one structural unit selected from the group consisting of cyclic olefin-derived structural units, wherein (a) Mw / Mn determined by GPC is 1 0.0 <(Mw / Mn) ≦ 1.8, and (b) the weight average molecular weight (Mw) is 1,000 ≦ Mw ≦ 5,000,000. 0, and (c) the molar ratio of the structural unit derived from the α-olefin to the structural unit derived from the cyclic olefin is 9 9/1 to 20/80. |