Atom transfer radical polymerization (ATRP) is by far one of the most promising living /controlled radical polymerization methods in industrial application. It is able to get the polymers with narrow molecular weight distribution and regular chain structure. Furthermore, many kinds of monomers can be polymerized by ATRP, and its reaction condition is mild and easy to control. Surface-initiated atom transfer radical polymerization (SI-ATRP) is a good method for grafting the polymers with regular structure on the surfaces of inorganic materials or synthesizing inorganic/organic composite materials. In recent years, SI-ATRP technique has attracted much attention from domestic and abroad researchers. In this paper, the reaction process and characteristics of SI-ATRP are elaborated, and then the progress in preparation of inorganic/organic core-shell structured composite nanoparticles based on non-metal oxide nanoparticles, metal oxide nanoparticles, metal nanoparticles, and other inorganic nanoparticle as core by SI-ATRP is highly reviewed. Finally, the outlook on future development of SI-ATRP for synthesizing inorganic/organic composite nanoparticles is presented.

Contents
1 Introduction
2 Reaction process and characteristics of SI-ATRP
3 Grafting polymer on different nanoparticles by SI-ATRP
3.1 Inorganic/organic core-shell structured composite nanoparticles based on non-metal oxide nanoparticle as core
3.2 Inorganic/organic core-shell structured composite nanoparticles based on metal oxide nanoparticle as core
3.3 Inorganic/organic core-shell structured composite nanoparticles based on metal nanoparticle as core
3.4 Inorganic/organic core-shell structured composite nanoparticles based on other inorganic nanoparticle as core
4 Conclusion and outlook