聚苯胺膜的制备研究

为了得到性能优异的高分子导电材料，利用乳液聚合法制备了聚苯胺。系统地研究了各影响因素对聚苯胺电导率的影响。测试结果显示最佳制备条件为：过硫酸铵16．42g，盐酸12mL，十二烷基苯磺酸钠0．21g。聚苯胺的电导率可达0．78S／cm。以三氯甲烷做溶剂，以聚苯乙烯为成膜物可以制备导电聚苯胺的自支撑膜，通过扫描电镜分析表明聚苯胺粒度较为均匀。

Study on Preparation of Polyaniline Film

To obtain excellent performance of conductive materials, polyaniline was prepared by polymerization method using DBSA as emulsifier, ammonium persulfate as polymerization initiator, hydrochloric acid as doping agent, the conductivity influenced by the amount of hydrochloric acid, emulsifier and initiator have been systematically studied. The conductivity was measured by four probe method, the results of the test showed that the best preparation conditions are as followed： ammonium persulfate 16.42g, hydrochloric acid 12mL, DBSA 0. 21g. The conductivity of polyaniline can be 0. 78S/cm. Determined the solubility of the maximum conductivity of polyaniline in different organic solvents, the results show that the solubility of polyaniline is the largest in chloroform and its dissolution rate of 36%, so chosen chloroform as solvent and with polystyrene as forming film, the self-supporting film of conductive polyaniline can be prepared, by scanning electron microscopy analysis showed that the amine polystyrene is more uniform particle size.