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以过硫酸铵(APS)和FeCl3为复合氧化剂,采用原位化学氧化聚合法合成了导电聚3,4-乙烯二氧噻吩/聚苯胺(PEDOT/PANI)复合材料,研究了苯胺浓度及加入时间、复合氧化剂配比和复合乳化剂配比对复合材料性能的影响,并对复合材料进行了分析.结果表明,PEDOT/PANI复合材料合成的较佳工艺条件为:3,4-乙烯二氧噻(EDOT)0.6mol/L、复合氧化剂0.6mol/L(FeCl3:APS=1:2,mol)、复合乳化剂0.4mol/L(SDBS:CTAB=2:3,mol)、复合掺杂剂1.2mol/L(H2SO4:SSA=4:1,mol)及苯胺0.8mol/L,EDOT聚合2h后加入苯胺溶液继续反应8h.复合材料的导电性、结晶性和热稳定性比纯导电聚合物好.
Anodic conductive poly (3,4-ethylenedioxythiophene) / polyaniline (PEDOT / PANI) composites were synthesized by in situ chemical oxidation polymerization using ammonium persulfate (APS) and FeCl3 as complex oxidants. The effects of aniline concentration and addition time , Composite oxidant ratio and compound emulsifier ratio on the properties of the composites were investigated.The results showed that the optimum conditions for the synthesis of PEDOT / PANI composites were 3,4-ethylenedioxythiophene (EDOT) 0.6mol / L, composite oxidant 0.6mol / L (FeCl3: APS = 1: 2, mol), emulsifier 0.4mol / L (SDBS: CTAB = 2: 3, mol) (H2SO4: SSA = 4: 1, mol) and aniline 0.8mol / L, EDOT polymerization 2h after the addition of aniline solution to continue the reaction 8h. Composite material conductivity, crystallinity and thermal stability than the pure conductive polymer is good .