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首页> 外文会议>International Conference on Surface and Colloid Science; 200309; Brazil >Synthesis and characterization of silver nanoparticle/polyaniline nanocomposites
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Synthesis and characterization of silver nanoparticle/polyaniline nanocomposites

机译：银纳米颗粒/聚苯​​胺纳米复合材料的合成与表征

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摘要

Novel dodecanethiol-capped silver nanoparticle (NP)/polyaniline (PANI) nanocomposites were prepared via the in situ polymerization of aniline in a metal NP containing medium. Sample PANI/Ag-1 was obtained by the polymerization of aniline in an aqueous solution in the presence of powdered NPs, and sample PANI/ Ag-2 was obtained by a two-phase reaction, in which a toluene solution of silver NPs and aniline were mixed with an acidic aqueous solution of ammonium persulphate (that acts as an oxidizing agent in the aniline polymerization). Fourier transform IR, Raman and UV-vis spectroscopy confirmed PANI formation in both samples. Transmission electron microscopy and high-resolution transmission electron microscopy images indicate that silver NPs were homogeneously dispersed on a polymer mass, and new Ag/PANI core-shell material was observed on PANI/Ag-2.
机译：新型的十二烷硫醇封端的银纳米粒子（NP）/聚苯胺（PANI）纳米复合材料是通过苯胺在含金属NP的介质中原位聚合制备的。在粉状NP的存在下，苯胺在水溶液中聚合得到样品PANI / Ag-1，在银NP和苯胺的甲苯溶液中通过两相反应获得样品PANI / Ag-2。将其与过硫酸铵（在苯胺聚合中起氧化剂作用）的酸性水溶液混合。傅里叶变换红外光谱，拉曼光谱和紫外可见光谱证实了两个样品中均形成了聚苯胺。透射电子显微镜和高分辨率透射电子显微镜图像表明，银纳米颗粒均匀地分散在聚合物上，并且在PANI / Ag-2上观察到了新的Ag / PANI核壳材料。

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