ヒドロキシアパタイト存在下におけるセリウム(IV)イオンによるメタクリル酸メチルの重合

抄録

Polymerization of methyl methacrylate (MMA) initiated by Ce (IV) ion was studied in the presence of hydroxyapatite (HAP) and H₂SO₄ in aqueous solution at 30°C. The rate of polymerization (R_p) was proportional to [Ce(IV)]^1.91. The effect of H₂SO₄ was also studied in the concentration range from 0 to 7.65×10^-3mol/l.The maximum conversion of MMA was given around at 3.6×10^-3mol/l of H₂SO₄. The degree of polymerization of the free homopolymer (PMMA) was 4000-8000 and the efficiency of grafting of PMMA onto HAP was 19-25%.