PROBLEM TO BE SOLVED: To provide an organic-inorganic composite material excellent in flexibility as well as biocompatibility and mechanical strength, an organic-inorganic composite molding, and their production methods.SOLUTION: There is provided an organic-inorganic composite material obtained by compounding hydroxy apatite into a partially phosphorylated hydroxyl group-containing polymer with a structure where, in a polymer having a hydroxy group, the hydroxy group is partially phosphorylated at a ratio in which a phosphorylation degree reaches 1 to 20%, and also provided is an organic-inorganic composite molding made of the organic-inorganic composite material. There is also provided a method for producing an organic-inorganic composite material where hydroxy apatite is compounded into the partially phosphorylated hydroxy group-containing polymer. Also provided is a method for producing an organic-inorganic composite molding where hydroxy apatite is compounded into the partially phosphorylated hydroxy group polymer, and thereafter, warm isotropic pressure press molding is performed.SELECTED DRAWING: None【課題】 生体適合性、機械的強度の他、柔軟性にも優れた有機－無機複合材料及び有機－無機複合成形物並びにこれらの製造方法を提供する。【解決手段】 本発明の有機－無機複合材料は、ヒドロキシ基を有する高分子における当該ヒドロキシ基がリン酸化度１～２０％となる割合で部分的にリン酸化された構造を備える部分リン酸化ヒドロキシ基含有高分子に、ヒドロキシアパタイトが複合化されてなり、本発明の有機－無機複合成形物は、前記有機－無機複合材料からなる。本発明の有機－無機複合材料の製造方法は、前記部分リン酸化ヒドロキシ基含有高分子に、ヒドロキシアパタイトを複合化する。本発明の有機－無機複合成形物の製造方法は、前記部分リン酸化ヒドロキシ基含有高分子に、ヒドロキシアパタイトを複合化した後、温間等方圧プレス成形を行う。【選択図】 なし
