通过原位微乳液聚合制备聚苯胺-金属复合纳米球
Preparation of polyaniline-metal composite nanospheres by in situ microemulsion polymerization.
作者信息
Li Liang, Yan Guoping, Wu Jiangyu, Yu Xianghua, Guo Qingzhong
机构信息
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, PR China.
出版信息
J Colloid Interface Sci. 2008 Oct 1;326(1):72-5. doi: 10.1016/j.jcis.2008.07.023. Epub 2008 Jul 18.
Nanosized metal and polyaniline (PANi) composite spheres have been prepared via the polymerization of aniline using PdCl(2) or HAuCl(4) as the oxidant in a microemulsion system. The oxidization of aniline and the reduction of metal ion happened together during the reaction, yielding PANi and elemental metal simultaneously. The results of FTIR spectra suggested that the oxidation degree of PANi was affected by the initial ratio of metal ions to monomer in the microemulsion system. The PANi-metal nanospheres were characterized using X-ray photoelectron spectroscopy and the conductivity of the composite nanospheres was measured by conventional four-probe method. Scanning and transmission electron microscopy were used to show the morphology of the composites.
通过在微乳液体系中以PdCl₂或HAuCl₄作为氧化剂使苯胺聚合，制备了纳米尺寸的金属与聚苯胺（PANi）复合球体。在反应过程中，苯胺的氧化和金属离子的还原同时发生，同时生成了聚苯胺和单质金属。傅里叶变换红外光谱（FTIR）结果表明，微乳液体系中金属离子与单体的初始比例会影响聚苯胺的氧化程度。利用X射线光电子能谱对聚苯胺-金属纳米球体进行了表征，并通过传统的四探针法测量了复合纳米球体的电导率。使用扫描电子显微镜和透射电子显微镜展示了复合材料的形态。
Zotero 插件