采用乳液聚合法合成了具有较好溶解性能的聚(N-乙基苯胺),并用红外光谱和紫外光谱对聚合产物进行了表征。研究表明,乳化剂的用量对产物的分子量和产率有较大的影响,当乳化剂/单体摩尔比为1∶2时,聚(N-乙基苯胺)具有最大的分子量和产率。盐酸掺杂态聚(N-乙基苯胺)的电导率为1.03×10-5S cm-1。此外,聚(N-乙基苯胺)具有明显的溶致变色性能。 Poly (N-ethylaniline) with good solubility was synthesized by emulsion polymerization. The polymerization products were characterized by IR and UV spectra. Studies have shown that the amount of emulsifier on the product molecular weight and yield have a greater impact, when the emulsifier / monomer molar ratio of 1: 2, poly (N-ethyl aniline) has the largest molecular weight and yield. The conductivity of doping poly (N-ethylaniline) hydrochloride was 1.03 × 10-5S cm-1. In addition, poly (N-ethyl aniline) has obvious lyotropic properties.