The formation mechanism of nanostructured polyaniline (PANI) synthesized in a micelle-like system was studied by a series of in situ NMR experiments, including ¹H NMR and CPMG. Depending on the signal evolution of the major species, the polymerization of polyaniline was divided into three continuous stages. At first, the neutral aniline molecules changed into anilinium, and the aniline dimer produced; and then, the consumption of aniline increased rapidly, the phenazine-like oligomers occurred and hydrated water increased, the micelles remained spherical; the different morphologies of polyaniline were formed by the fusion of spherical micelles in final. In combination with the evolution of the morphology which was characterized through TEM, the formation mechanism of nanostructured polyaniline was compared and analyzed.

通过一系列原位核磁共振实验研究了在类胶束体系中合成的纳米结构聚苯胺（PANI）的形成机制，包括¹H NMR 和 CPMG。根据主要物种的信号演变，聚苯胺的聚合分为三个连续阶段。起初，中性苯胺分子转变为苯胺盐，生成苯胺二聚体；然后苯胺的消耗量迅速增加，出现吩嗪状低聚物，水合水增加，胶束保持球形；聚苯胺的不同形态是由球形胶束最终融合形成的。结合透射电镜表征的形貌演变，对比分析了纳米结构聚苯胺的形成机理。