Via the reaction between the hydroxyl on the surface of activated silica nanoparticles and2-bromoisobutyryl bromine(BSB), the silica nanoparticles which contain initial radical on thesurface(BSB-SiO_2) were obtained.

• 利用活化纳米SiO_2粒子上的羟基与2-溴基异丁酰溴(2-bromoisobutyryl bromide,BSB)反应,制得了表面带有引发基团的SiO_2粒子(BSB-SiO_2)。