Synthesis of silver/polymer colloidal composites from surface-functional porous polymer microspheres

摘要

This study presents a different colloidal silver(Ag)/polymer system where Ag nanoparticles are deposited uniformly onto surface-functional porous poly(ethylene glycol dimethacrylate-co-acrylonitrile)(poly(EGDMA-co-AN))microspheres.The formation and morphology of the composite microspheres were characterized from electron microscopy and X-ray diffraction analyses.The significance of the present report is that owing to the high affinity between Ag and nitrile group(C(ident to)N)on the large surface of the microspheres,the Ag nanoparticles having a face-centered cubic phase were incorporated evenly into the deep pores of the microspheres with fine size and size distribution.In the preservation test,the Ag/poly(EGDMA-co-AN)composite microspheres obtained showed an excellent anti-bacterial performance,elucidating a high applicability for a new preservative.