| 摘要 |
A block polymer having functional groups at both ends of its molecule and comprising hydrophilic/hydrophobic segments. As the functional groups at both ends, the polymer carries amino, carboxy or mercapto at the .alpha.-end and hydroxy, carboxy, aldehyde, vinyl, etc. at the .omega.-end. The hydrophilic segment comprises polyoxyethylene while the hydrophobic segment is one derived from lactide, lactone or (meth)acrylate. This block polymer forms a polymeric micelle and is applicable to biocompatible materials, etc.
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