| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a copolymer of an olefin and an aromatic vinyl compound, having a high block property having a syndiotactic structure and a wide molecular weight distribution, a method for producing the same, a resin composition of the same and a stretch-molded article of the same. <P>SOLUTION: This copolymer consisting of the olefin and aromatic vinyl compound is provided by having 1 to 99 mol% content of the aromatic vinyl compound and≥1.7 molecular weight distribution, presenting a signal based on chains (olefin-aromatic vinyl compound-olefin) which are the joining points of the copolymer, a signal based on the chains (aromatic vinyl compound-aromatic vinyl compound-olefin), a signal based on block like chains (aromatic vinyl compound-aromatic vinyl compound-aromatic vinyl compound) of the aromatic vinyl compound and a signal based on the block like chains (olefin-olefin-olefin) of the olefin, and having 30 to 100% index showing the block property of the aromatic vinyl compound component and≥80 mol% stereoregularity of recurring units constituted by the aromatic vinyl compound. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
