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采用快速混合的方法一步原位合成了不同形貌的聚苯胺/银纳米复合材料。扫描电子显微镜证明,通过改变苯胺与硝酸银的物质的量比可使聚苯胺/银纳米复合材料的形貌由微球到纳米纤维的转变。X射线衍射分析表明,单质银的粒径随着苯胺与硝酸银的物质的量浓度比的减小而增大,聚苯胺仍保持特有的非晶态。紫外-可见光谱分析表明,银纳米粒子与聚苯胺分子间存在相互作用,且银粒子改变了聚苯胺的分子结构。抗菌性实验证明,聚苯胺/银纳米复合材料的形貌对抗菌性能有显著影响,聚苯胺/银纳米纤维有最优异的抗菌性能。

Polyaniline/silver nanocomposites with different morphologies were prepared in situ by rapid mixture approach.Scanning electron microscope(SEM) proves that the morphologies of polyaniline/silver nanocomposites can be changed from microspheres to nanofibers by changing the molar ratio of aniline and silver nitride.X-ray diffraction(XRD) analysis shows that the size of silver particle decreases with increasing molar ratio of aniline and silver nitride,and polyaniline remains unique amorphous amorphous.UV-Vis absorption spectroscopy analysis indicates that the silver nitride has some effect on the microstructure of polyaniline (PANI).Antibacterial test result shows that morphologies of polyaniline/silver nanocomposites have significant effects on their antibacterial properties,and polyaniline/silver nanofibers have the most excellent antibacterial properties.

参考文献

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