掺杂质子酸的类型对聚苯胺结构和电导率的影响

Effect of Protonic Acids Types on the Structures and Conductiv ity of Polyaniline

摘要: 采用化学氧化聚合法以苯胺为单体，过硫酸铵为氧化剂，在不同质子酸的水溶液中合成聚苯胺，考察质子酸对聚苯胺电性能影响，并通过傅立叶红外吸收光谱（FTIR）和紫外可见光吸收光谱（UV－vis)研究聚苯胺掺杂前后结构的变化。结果表明，龙质子酸掺杂后聚胺具有导电性是因为其分子链上电荷离城形成了共轭结构，具有不同质子酸中生成的聚苯胺氧化程度不同；分子链共轭程度与掺杂酸对阴离子大小有关，掺杂质子酸对阴离子越大，聚苯胺分子链共轭程度越大，电导率也就越高。

Abstract: Polyaniline were synthesized in various protonic acids aqueous solution by chemical oxidization polymerization, using aniline as monomer and ammonium persulfate as oxidant. And its electrical properties were studied as a function of protonic acids. The s