| abstract |
An α-olefin polymer having high reactivity is provided. An α-olefin polymer satisfying the following (1) to (4). (1) 2,1-bond fraction is less than 0.5 mol%. (2) The sum of 1,3-bond fraction and 1,4-bond fraction is less than 0.5 mol%. (3) The melting endotherm ΔH-D measured with a differential scanning calorimeter (DSC) is less than 1.0 J / g. (4) A propylene polymer or a butene polymer. [Selection figure] None |