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Photolithographic synthesis of polyaniline nanofibres

机译：光刻法合成聚苯胺纳米纤维

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摘要

Thin films of polyaniline nanofibres were synthesized using ultraviolet irradiation of aqueous solutions of aniline, nitric acid, and ammonium peroxydisulfate. The parent solution was spin coated on a planar substrate, and allowed to polymerize in the dark for 4-5 min. The substrate was then exposed to ultraviolet light for 6-10 min. Irradiation was carried out either with a frequency-tripled Nd: YAG laser, or with a mercury vapour lamp. The polyaniline fibres and films were characterized with scanning and transmission electron microscopy, and with Fourier transform infrared spectroscopy. Fibres had typical diameters between 20 and 150 nm, and lengths of the order of microns. Bulk polyaniline formed in the unirradiated portion of the samples. Using a masking technique, alternating stripes of bulk polyaniline and polyaniline nanofibres were produced.
机译：使用苯胺，硝酸和过氧二硫酸铵水溶液的紫外线辐射合成了聚苯胺纳米纤维的薄膜。将母液旋涂在平面基材上，并在黑暗中聚合4-5分钟。然后将基材暴露于紫外线下6-10分钟。用三倍频的Nd：YAG激光或汞蒸汽灯进行辐照。用扫描和透射电子显微镜以及傅立叶变换红外光谱对聚苯胺纤维和薄膜进行表征。纤维的典型直径在20至150 nm之间，长度约为微米。样品的未辐照部分形成了块状聚苯胺。使用掩蔽技术，产生了块状聚苯胺和聚苯胺纳米纤维的交替条纹。

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