摘要
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.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2012年第2期60-63,共4页
Polymer Materials Science & Engineering
基金
云南省中青年学术技术带头人后备人才项目(2009CI029)
国家博士后基金项目(20100471684)
国家大学生创新性实验计划(091067425)
关键词
聚苯胺
纳米银
形貌
抗菌
polyaniline
nano-silver
morphologies
antibacterial properties
