中文摘要：

采用三嵌段共聚物P123（EO20PO70EO20）合成聚苯胺纳米纤维。利用粉末X射线衍射、透射电子显微镜、扫描电子显微镜、紫外光谱、红外光谱、热重分析等手段对产品的形态、组成和光学性质进行了表征。另外,将聚苯胺固定到玻碳电极表面构建了生物传感器。聚苯胺修饰电极对抗坏血酸的氧化显示了高的催化活性。讨论了聚苯胺纳米纤维可能的形成机理。

英文摘要：

Polyaniline （PANI） nanofibers were synthesized in the presence of triblock copolymer P123 （EO20PO70EO20）.The morphology,composition,and optical properties of the resulting products were characterized by scanning electron microscopy,transmission electron microscopy,X-ray diffraction,thermogravimetric analysis,Fourier transform infrared spectroscopy,and ultraviolet-visible absorption spectra.In addition,PANI was also immobilized on the surface of a glassy carbon electrode （GCE） to construct a biosensor.The obtained PANI-modified GCE showed high catalytic activity for the oxidation of ascorbic acid.The possible formation mechanism of the PANI nanofibers was also discussed.