Polyaniline Nanomaterials In Different Reverse Micelles System

Polyaniline (PANI) is a kind of electrically conducting polymer with many features that could be exploited in various applications. Owing to its excellent electronic and environmental stability, especially a unique and reversible acid/ base doping/ de-doping chemical property, it has attracted considerable scientific interest now. But its main disadvantages are poor thermal of stability and poor processability both in melt and solution due to its stiffness of the backbone,which greatly limited the applications of polyaniline. Many studies have been made in order to promote the solubility and processability of the PANI, among which the reverse micelle template-synthesis of PANI becomes one of the focuses of aniline.In our paper, the DBSA/ isooctane/ water reverse micelle system was selected to prepare PANI nanomaterials. Moreover, the possible reaction mechanism was presumed and explained. The reaction time, APS/An, DBSA/An were investigated to determine the optimum reaction conditions. UV-Vis, FT-IR, CV, XRD, TGA-DTA, TEM, etc were used to character the resulting products. The conductivity, molecular weight and solubility of the products in some certain solvents were also investigated.Moreover, we choose CTAB/ water/ n-heptane/ n-hexanol quaternary reverse micelle system to synthesize HCl-PANI 1D nanomaterials via self-assembling process both at room temperature and in the ambience of hydrothermal process. UV-Vis, FT-IR, TEM, SEM, XRD, etc were used to character the resulting products, and the possible reaction mechanism was presumed and explained. Different systems, for example AOT/isooctane/water reverse micelle, SDS/water/isooctane micelle, DBSA/isooctane/water reverse micelle, CTAB/ water/ n-heptane/ n-hexanol reverse micelle and CTAB/ water/ isooctane/ isooctyl alcohol reverse micelle were selected to study the influence of aging time,agitated mode, using of hydrothermal process to the morphology of the resulting products. And simple analysis were made to explain the difference of the morphology of the products accoding to different reaction conditions.