Preparation and Properties of Conductive Poly(3,4-ethylene dioxythiophene)/Polyaniline Composite
聚3,4-乙烯二氧噻吩/聚苯胺复合材料的制备与性能

Conductive poly(3,4-ethylene dioxythiophene)/polyaniline(PEDOT/PANI) composite was synthesized by chemical oxidative polymerization with ammonium persulfate and ferric chloride as oxidant.Its properties were studied on the effects of addition time aniline,molar ratios of FeCl3 to APS in composite oxidant and SDBS to CTAB in composite emulsifier and aniline concentration.The results show that the optimal synthesis conditions of PEDOT/PANI are:EDOT 0.6 mol/L,composite oxidant 0.6 mol/L(FeCl3:APS=1:2,mol),composite emulsifier 0.4 mol/L(SDBS:CTAB=2:3,mol),concentration of composite doping agent 1.2 mol/L(H2SO4:SSA=4:1,mol),and aniline 0.8 mol/L.After 2 h,aniline solution is added and continued to react for 8 h.PEDOT/PANI composite has better conductivity,crystalline and thermal stability than that of pure PEDOT and PANI.