Han Mingjuan, Chu Ying, Han Dongxue, Liu Yang
Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
J Colloid Interface Sci. 2006 Apr 1;296(1):110-7. doi: 10.1016/j.jcis.2005.08.064. Epub 2005 Nov 22.
The pyrrole-oligomer nanoparticles doped dodecylbenzenesulfonic acid (DBSA) have been fabricated in water-DBSA-isopropyl alcohol-isooctane reverse microemulsion, since DBSA could play the roles of both surfactant and dopant. We have found the optimum synthetic conditions by the analysis of factors affecting the yield and conductivity of oligopyrrole. The effect of solubility on the improved properties of DBSA-oligopyrrole in some organic solvents was studied employing UV-vis-NIR spectroscopy. This indicates that doping and pyrrole-oligomers may improve the poor processibility of PPy. Its environmentally stable properties were characterized by thermogravimetric and differential thermal analysis (TG-DTA). The maximum room temperature conductivity of products is 8.01 S/cm using the four-probe technique. The pyrrole-oligomers have been determined by the analysis of molecular weight measurement, and X-ray photoelectron spectroscopy (XPS) and elemental analysis were employed to investigate the formation of DBSA-oligopyrrole complexes. Correspondingly, the structural properties of DBSA-oligopyrrole were studied by infrared spectroscopy (IR), X-ray diffraction (XRD), transmission electron micrographs (TEM), and scanning electron microscopy (SEM).
由于十二烷基苯磺酸（DBSA）既能起到表面活性剂的作用又能作为掺杂剂，因此在水-DBSA-异丙醇-异辛烷反相微乳液中制备了掺杂DBSA的吡咯低聚物纳米颗粒。通过分析影响低聚吡咯产率和电导率的因素，我们找到了最佳合成条件。采用紫外-可见-近红外光谱研究了溶解性对DBSA-低聚吡咯在某些有机溶剂中性能改善的影响。这表明掺杂和吡咯低聚物可能会改善聚吡咯较差的加工性能。通过热重和差热分析（TG-DTA）对其环境稳定性进行了表征。使用四探针技术测得产物的最大室温电导率为8.01 S/cm。通过分子量测量分析确定了吡咯低聚物，并采用X射线光电子能谱（XPS）和元素分析来研究DBSA-低聚吡咯配合物的形成。相应地，通过红外光谱（IR）、X射线衍射（XRD）、透射电子显微镜（TEM）和扫描电子显微镜（SEM）研究了DBSA-低聚吡咯的结构性质。
