| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a polymer such as block copolymer or cross-linked network suitable for medical applications. <P>SOLUTION: There is disclosed a block copolymer containing at least one degradable block, in which individual blocks are mutually connected through a thioester bond (-COS-) represented by formula (wherein, W<SB POS="POST">1</SB>, W<SB POS="POST">2</SB>and W<SB POS="POST">3</SB>are each selected from the group consisting of C, H, O, N, S, P, alkyl, aryl, ester and ether). <P>COPYRIGHT: (C)2012,JPO&INPIT |
