Nanocarrier Co., Ltd.

Daisuke Wakebayashi

Atsushi Harada

Yukio Nagasaki

Kazunori Kataoka

Masao Kato

Yasuo Sato

The present invention provides a polymer obtained by polymerizing a mixture composed of a methacrylic ester monomer having an electron-donating group bonded to a specific site of its ester-forming residue (its alcohol moiety) and optionally a lactone or lactide, while using an alkali metal alcoholate as a polymerization initiator. Moreover, it also provides a process for preparing the polymer and polymer micelles formed from the polymer. Since the polymer has a functional group corresponding to the polymerization initiator and the aforesaid electron-donating groups (functional groups), it can perform a great variety of functions by taking advantage of these functional groups.

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Noda, Japan

Daisuke Wakebayashi