PEDOT∶PSS的合成及二次掺杂对其导电性的影响  

Synthesis and the Effect of Secondary Doping on Its Electrical Conductivity of PEDOT∶PSS

作　　者：冯春梅 曾明 陈中华 李亮[1] 刘文艺 雷钰君 胡章润 彭娅[1] Feng Chunmei;Zeng Ming;Chen Zhonghua;Li Liang;Liu Wenyi;Lei Yujun;Hu Zhangrun;Peng Ya(School of Materials Science and Engineering,Xihua University,Chengdu 610039,China;Chongqing Food and Drug Inspection Institute,Chongqing 401123,China)

机构地区：[1]西华大学材料科学与工程学院,成都610039 [2]重庆市食品药品检验所,重庆401123

出　　处：《工程塑料应用》2019年第9期7-11,共5页Engineering Plastics Application

基　　金：四川省教育厅重点项目(12ZA15);教育部“春晖计划”科研项目(Z2010093);“西华杯”大学生创新创业项目(2019050)

摘　　要：为改善聚(3,4-亚乙基二氧噻吩)(PEDOT)不溶不熔的特点,用聚苯乙烯磺酸(PSS)作为掺杂剂采用化学氧化法制备了PEDOT:PSS复合材料.研究表明,当PEDOT:PSS质量比=1:3时,复合材料的溶解性最佳.在此基础上分别研究了硫酸、甲酸、乙酸作为二次掺杂剂对复合材料导电性能的影响.结果表明,二次酸掺杂的PEDOT:PSS电导率较PEDOT:PSS复合材料均有明显的提高,且硫酸掺杂效果远优于甲酸、乙酸,且硫酸的浓度达到8 mol/L时,PEDOT:PSS复合材料的电导率可高达4.22 S/cm.In order to improve the solubility of poly (3,4-ethylenedioxythiophene)(PEDOT),polystyrene sulfonate (PSS) was used as a dopant to prepare poly (3,4-ethylenedioxythiophene)∶polystyrene sulfonate (PEDOT∶PSS) composites by chemical oxidation method. It is revealed that the solubility of the composites has the best solubility when the ration of PEDOT∶PSS is 1∶3. On this basis,the effects of sulfuric acid,formic acid and acetic acid as secondary dopants on the conductivity of the composites were studied. It is showed that the conductivity of PEDOT∶PSS doped by secondary acid is significantly higher than that of PEDOT∶PSS and the conductivity of PEDOT∶PSS doped by sulfuric acid is much higher than that of formic acid and acetic acid. When the concentration of sulfuric acid reaches 8 mol/L,the conductivity of PEDOT∶PSS can be as high as 4.22 S/cm .

关 键 词：聚(3 4-亚乙基二氧噻吩) 聚苯乙烯磺酸盐 掺杂 电导率 溶解性 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]