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A novel approach to the construction of core-shell gold-polyaniline nanoparticles

机译:构建核-壳金-聚苯胺纳米颗粒的新方法

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Uniform core-shell gold-polyaniline (Au-PANI) nanoparticles were successfully fabricated by in situ polymerization of aniline using poly(N-isopropylacrylamide)-co-poly(acrylic acid) (PNIPAM-co-PAA)/AuNP hybrid microgel particles as a template. TEM images gave direct evidence of the core-shell nanostructure of Au-PANI particles, which were composed of gold nanoparticles as the core and polyaniline as the shell. The shell thickness of as-prepared core-shell Au-PANI nanoparticles can be easily tuned by controlling the reaction time. A possible mechanism for the formation of core-shell Au-PANI nanostructures was proposed. This novel synthetic method may be extended to the synthesis of other core-shell nanostructures with diverse functionality and high colloidal stability.
机译:聚(N-异丙基丙烯酰胺)-共聚(丙烯酸)(PNIPAM-co-PAA)/ AuNP杂化微凝胶颗粒作为原位聚合苯胺,成功制备出均匀的核壳金-聚苯胺(Au-PANI)纳米颗粒。模板。 TEM图像直接证明了Au-PANI颗粒的核-壳纳米结构,该颗粒由金纳米颗粒为核,聚苯胺为壳。通过控制反应时间,可以容易地调节所制备的核-壳Au-PANI纳米颗粒的壳厚度。提出了形成核-壳Au-PANI纳米结构的可能机理。这种新颖的合成方法可以扩展到具有不同功能和高胶体稳定性的其他核-壳纳米结构的合成。

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