摘要
分别以过硫酸铵（APS）和三氯化铁（FeCl3）为氧化剂，采用“无模板”的方法成功地制备了水杨酸（SA）掺杂的聚苯胺（PANI）微／纳米空心球．研究表明，氧化剂的不同氧化电位可以控制聚苯胺微球的尺寸．以氧化／还原电位较大的过硫酸铵为氧化剂时制得的小球直径较大，约为2～5μm；而以氧化／还原电位较小的三氯化铁为氧化剂时制得的小球直径较小，约为300—800nm．并通过FTIR，UV—Vis结构表征证实所得的聚苯胺均为掺杂态，不同氧化剂下聚苯胺的电导率均为-10^-1S／cm．
Size-Controlled hollow micro/nanospheres of polyaniline （PANI） doped by salicylic acid （SA） were synthesized by a template-free method in the present of APS or with FeCl3 as oxidant. It was found that the average diameter of the hollow micro/nanospheres depends on the redox potential of the used oxidant. Conductivities of the hollow spheres measured by four-probe method are as high as - 10^-1 S/era at room temperature. The hollow micro/nanospheres characterized by FTIR and UV-Visible absorption spectrums are identical to the emeraldine salt state of PANI.
出处
《内蒙古科技大学学报》
CAS
2008年第4期337-340,345,共5页
Journal of Inner Mongolia University of Science and Technology
基金
国家自然科学基金资助项目(50533030)
