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分别以Fe(Cl O4)3、FeCl3、Fe2(SO4)3作为氧化剂,对3′,4′-乙撑二氧-2,2′∶5′,2″-三噻吩(TET)进行了化学氧化聚合,并研究了聚合条件对聚合物结构和电化学性能的影响。利用红外光谱、紫外光谱、X射线衍射对聚合物进行了表征,采用循环伏安、恒电流充放电等电化学方法研究了聚合物的电化学性能。结果表明:当TET与Fe(Cl O4)3的摩尔比为1∶4,反应温度为18℃,反应时间为12 h时,聚3′,4′-乙撑二氧-2,2′∶5′,2″-三噻吩(PTET)具有更好的共轭结构和电化学性能,导电率可达1.47 S/m,比电容可达133 F/g。
The chemical properties of 3 ’, 4’-ethylenedioxy-2,2’: 5 ’, 2 “-trithiophene (TET) were studied with Fe (ClO4) 3, FeCl3 and Fe2 (SO4) The effects of polymerization conditions on the structure and electrochemical properties of the polymers were investigated.The polymers were characterized by FTIR, UV and X-ray diffractometry. The cyclic voltammetry (CV) and galvanostatic charge-discharge The results showed that when the molar ratio of TET to Fe (Cl O4) 3 was 1: 4, the reaction temperature was 18 ℃ and the reaction time was 12 h, the poly 3 ’, 4’- Dioxo-2,2’-5 ’, 2 ”-tithiophene (PTET) has better conjugated structure and electrochemical properties, with conductivity up to 1.47 S / m and specific capacitance up to 133 F / g.