초록 |
We report a new synthetic method of high-performance polyaniline, implementing a new concept of self-stabilized dispersion polymerization. In contrast with conventional homogeneous or dispersion polymerization methods that use an aqueous medium containing aniline, acid, and oxidant, our new polymerization is performed in a heterogeneous biphasic system of organic and aqueous medium without any stabilizers. Polymerization based on this concept has produced high-quality samples with few structural defect; the doped polyanilines exhibit significantly enhanced conductivities compared with that obtained from the conventional methods. Moreover, the new polyaniline system shows a honeycomb-like morphology with great porosities leading to a system with excellent processability. |