poly 由 monodispersed 组成的合成 microspheres (St-co-MAA ) 有直径的乳胶核心和 Ag nanocrystals 作为壳被准备由的大约 260 nm 一在里面 situ 减小方法。壳厚度能被这个涂层过程在 15-45 nm 的范围控制。结构和核心壳 microspheres 的作文被传播描绘电子显微镜学(TEM ) , X 光检查 diffractometry (XRD ) , X 光检查光电子光谱学(XPS ) ,和 thermogravimetric 分析(TG ) 。合成 microspheres 的形成被银的成核在银壳的生长跟随的乳胶的表面上解释。
Composite microspheres composed of monodispersed poly(St-co-MAA) latices with diameter about 260 nm as core and Ag nanocrystals as shell were prepared by an in situ reduction method. The shell thickness could be controlled in the range of 15--45 nm by this coating process. The structure and the composition of the core-shell microspheres were characterized by transmission electron microscopy (TEM), X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TG). The formation of the composite microspheres is explained by the nucleation of silver on the surface of the latices followed by growth of the silver shell.