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以N-乙基苯胺（NA）、苯胺（AN）为单体,过硫酸铵（APS）为引发剂,通过静态聚合法制备了导电性微纳米结构N-乙基苯胺-苯胺共聚物（PNAAN）。结果表明,共聚物的形貌、结构和性能强烈依赖于NA/AN物质的量比和APS/单体物质的量比。APS/单体物质的量比为1.0时,PNAAN（10∶90）共聚物为直径139 nm186 nm、长度可达4.2μm的纳米纤维;PNAAN（50∶50）共聚物呈直径为1.3μm3.6μm、表面光滑的微球;而PNAAN（90∶10）共聚物则是直径为4.45μm表面粗糙的微球。APS/单体物质的量比为2.0时可得到外直径约2.0μm2.7μm的自组装PNAAN（50∶50）共聚物空心球。

Conductive micro/nano-structural poly（N-ethylaniline-co-aniline）（PNAAN） copolymers were synthesized via unstirred polymerization of N-ethylaniline（NA） and aniline（AN） with ammonium peroxydisulfate as an oxidant.Morphology,structure and electrical conductivity of the copolymers were characterized by means of SEM,TEM,FT-IR,UV-vis,and four-probe techniques.It is found that the structure,morphology and properties of the copolymer strongly depend on the NA/AN molar ratio.PNAAN（10/90） copolymer nanofibers in diameters of 139 nm186 nm and lengths up to 4.2 μm were prepared with APS/comonomer molar ratio of 1.0,whereas PNAAN（50/50） copolymer spheres with smooth surface（1.3 μm3.6 μm in outer diameter） were produced during the same above-mentioned polymerization conditions.While the PNAAN（90/10） copolymer self-assembled hollow microspheres with coarse surface（4.45 μm in outer diameter） were obtained.The SEM image reveals that the PNAAN（50/50） copolymer spheres are constructed with their own nanofibers by self-assembly process.The as-synthesized PNAAN copolymers possess good room-temperature electroconductivity and solubility.