Abstract: Atom transfer radical polymerization(ATRP) initiator was assembled on silicon wafer to initiate 4-vinylpyridine polymerization by surface initiated technique, a functional PVP brush was prepared. The metal complexes of Cu²⁺ and Ag⁺ with polyvinylpyridine (PVP) were formed, and the metal complexes were reducted to metal nanoparticles with NaHB₄. The structure and properties were proved by using XPS, FT-IR, AFM and water contact angle. The r esult shows the metal complexes of PVP have been reduced, the size of metal nanoparticles is about 170 nm.

Key words: metal nanoparticles, polyvinylpyridine (PVP), complex layer film, surface properties