科研之友
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摘要
In this work, we put forward a simple and universal electroless plating approach to synthesize polystyrene/metal (PS/M) composite spheres, and hollow metal (e.g. Ni, Co, Cu) structures were also obtained after removing the PS core. Monodisperse PS microspheres were initially synthesized via a dispersion polymerization, and then these PS spheres activated with Pd served as templates for the synthesis of PS/M core-shell composite. The parameter of temperature was investigated in details, which strongly influenced the quality and morphology of metal coatings. Based on the above core-shell structures, the PS core template could be removed by ethyl acetate, and metal hollow spheres were formed finally. X-ray diffraction and scanning electron microscopy characterizations indicated that elemental Ni, Co, and Cu coatings with highly pure phase were successfully deposited onto the surfaces of PS microspheres. Such PS/M composites with low density would have wide applications in electromagnetic shielding fields.
- 出版日期2015-12
- 单位中北大学
