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以过硫酸铵(APS)为氧化剂,在无模板,无掺杂酸条件下,利用超声辅助合成了聚苯胺纳米管.通过透射电子显微镜、傅里叶红外光谱、紫外-可见光谱、X-射线衍射对产物的形貌、结构和性能进行了表征.研究表明,形成的聚苯胺纳米管内径约为10 nm,外径约为80 nm,长度约为26μm,且管径均匀.苯胺单体浓度越高,聚合速率越快.但是,聚苯胺的形貌与苯胺单体的浓度无关,而与苯胺和过硫酸铵的摩尔比有关.超声在纳米管的形成中起主要作用,它阻止球状胶束无规则团聚,使得在较高的苯胺浓度下(0.2 mol/L)也可形成纳米管.合成的聚苯胺电导率为5×10-3S·cm-1,结晶度不高.
Polyaniline nanotubes were synthesized by ultrasound-assisted using ammonium persulfate (APS) as oxidant in the absence of template and undoped acid.The structures of the polyaniline nanotubes were characterized by transmission electron microscopy, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, X-ray The morphology, structure and properties of the product were characterized by X-ray diffraction.The results showed that the polyaniline nanotube has an inner diameter of about 10 nm, an outer diameter of about 80 nm and a length of about 26 μm, The higher the rate of polymerization, the faster the polymerization rate.However, the morphology of polyaniline is not related to the concentration of aniline monomer but to the molar ratio of aniline to ammonium persulfate Ultrasound plays a major role in the formation of nanotubes, The irregular agglomeration of the beam led to the formation of nanotubes at a high concentration of aniline (0.2 mol / L). The polyaniline had a conductivity of 5 × 10-3 S · cm-1 and a low degree of crystallinity.