کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
596857 | 1454055 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Amphiphilic core–shell particles as carrier systems for metallic nanoparticles Amphiphilic core–shell particles as carrier systems for metallic nanoparticles](/preview/png/596857.png)
In this paper, we used the PS-cored aggregates with PAA corona as a template for metal-block copolymer nanocomposites formation. Polyethyleneimine (PEI) could act as the linker between Ag ions (Ag nanoparticles) and PS-b-PAA colloids and the reducing agent in the formation of Ag nanoparticles. The product was characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and UV–vis spectrum. The results revealed that the size and size distribution of the resulting silver nanoparticles prepared based on the copolymer were strongly dependent on the ratio of initial concentration of the silver ion solution to copolymer. The silver crystal was polycrystalline with a face-centered cubic structure, as confirmed by XRD. This work provides a simple route for the in situ synthesis of Ag nanoparticles on block copolymer colloids.
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 317, Issues 1–3, 20 March 2008, Pages 705–710