| 摘要 |
PROBLEM TO BE SOLVED: To provide a block copolymer having a block portion comprising a (meth)acrylate having a specific structure, a block portion comprising an aromatic vinyl compound and a block portion comprising a conjugated diene compound, to provide a method for producing the same, and to provide a composition, a sheet, and a film each using the block copolymer. SOLUTION: This block copolymer having at least one block portion selected from a block portion comprising a (meth)acrylate, a block portion comprising an aromatic vinyl compound, and a block portion comprising a conjugated diene compound, is characterized in that the block portion comprising the (meth)acrylate is placed at one terminal of the block copolymer, and a substituent bound to the oxygen atom of the ester group of the (meth)acrylate has a norbornyl skeleton or adamanthyl skeleton. COPYRIGHT: (C)2008,JPO&INPIT |
