聚苯胺纳米粒子的反胶束法合成及自组装  

Synthesis and Self-assembly of Polyaniline Nanoparticles Synthesized in Reversed Micelles

作　　者：邢双喜[1] 褚莹[1] 隋晓萌[1] 

机构地区：[1]东北师范大学化学学院,长春130024

出　　处：《应用化学》2004年第12期1315-1319,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助课题 ( 2 0 173 0 0 8)

摘　　要：分别在 2 乙基己基琥珀酸钠 (AOT)、聚氧乙烯烷基苯基醚 (OP)及溴化十六烷基三甲基铵 (CTAB) 3种表面活性剂构建的反胶束体系中合成了聚苯胺纳米粒子 ;利用紫外 可见、红外光谱、X射线粉末衍射及透射电镜等对产物进行了结构表征和形态观察 ;讨论了反胶束水池大小、苯胺单体浓度及表面活性剂种类等对聚苯胺纳米粒子尺寸和形态的影响 ;首次探讨了反胶束体系中聚苯胺纳米粒子的形成过程。结果表明 ,聚苯胺纳米粒子的尺寸随着反胶束水池的增大而增大 ,并能在较高单体浓度下进行自组装 ,聚苯胺纳米粒子从球形组装为米粒状 ;单体浓度从 0 0 5mol/L增大到 0 2mol/L时 ,以及表面活性剂带有电荷时 。Polyaniline(PANI) nanoparticles were prepared in reversed micell systems consisted of sodium di(2-ethylhexyl)sulfosuccinate, p-octyl polyethylene glycol phenylether and cetyltrimethyl ammo- nium bromide, respectively. UV-Vis, IR and X-ray diffractometry were used to characterize the structure of the PANI nano- particles. The influences of size of “water pool” of reversed micelle, aniline concentration and the kind of the surfactant on the size and morphology of the products were investigated. The self-assembly of PANI nano- particles in reversed micelle is discussed briefly. The results show that the size of PANI nanoparticles became bigger with increase the size of “water pool”, and ellipsoidal PANI could be formed from the small round nanoparticles by self-assembly at a high concentration. Increasing the aniline concentration from 0.05 mol/L to 0.2 mol/L and using ionic surfactant such as AOT or CTAB, would make the assembly products more compact.

关 键 词：聚苯胺 纳米粒子 反胶束 自组装 

分 类 号：O647[理学—物理化学]