Poly(methyl methacrylate) (PMMA) was effectively grafted onto nanometer silica through the initiation of anchored ACPA during emulsion polymerization. The grafting percentage and efficiency of PMMA were 23.2% and 36.1% determined by TGA.

• 通过改性纳米SiO2 存在下MMA的乳液聚合 ；制备得到了接枝率为 2 3 2%25、接枝效率为 36 1%25的PMMA 纳米SiO2 复合粒子 .