化学氧化法合成聚吡咯工艺条件优化及电化学性能  

Synthesis process optimization of chemical oxidative polymerization of polypyrrole and its electrochemical properties

作　　者：林生岭[1] 曹旭[1] 林琪[1] 储艳文[1] 郭寅丹[1] 龙丹[1] 万勇[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2010年第4期353-356,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(20704020);江苏科技大学博士启动基金资助项目(2006CL0035)

摘　　要：采用化学氧化法合成粉末状导电高分子材料聚吡咯(PPy),研究氧化剂浓度、氧化剂种类、反应温度及反应时间对PPy电导率的影响,通过正交设计思路,优化合成工艺条件,并研究其电化学活性.结果表明,合成导电高分子材料PPy的影响因素顺序依次为:氧化剂种类、反应温度、氧化剂用量、反应时间;PPy的最佳合成条件为:以FeC l3为氧化剂,PPy与FeC l3用量摩尔比为1∶1,在0℃冰水浴条件下反应6 h;聚吡咯的电导率随氧化剂用量的增加呈现先增大后减小的趋势,合成聚吡咯的氧化剂为FeC l3时电导率较高,随着反应时间的增加,聚吡咯的电导率有显著地增加,在低温下有利于提高聚吡咯的电导率;循环伏安表明,PPy具有良好的电化学活性.A powdery conductive polymer material polypyrrole（PPy） was synthesized with chemical oxidative method,and its conductivity was effected by dosage of oxidant,type of oxidant,reaction temperature and polymerization time.The synthesis process was optimized by the orthogonal designation.Furthermore,the electrochemical tests were researched.The results indicate that the order of primary and secondary impact factors on synthesis of PPy is,respectively,type of oxidant,reaction temperature,dosage of oxidant,reaction time.The best conditions of synthesizing PPy are as follows： the oxidant is FeCl3,the molar ratio of PPy and FeCl3 is 1：1,the reaction temperature is 0℃,and the reaction time is 6 hours.The conductivity of PPy increases with the dosage of oxidant at first and then decreases.It is high when FeCl3 is as the oxidant.The conductivity also increases with the reaction time,and becomes high in low temperature.Cyclic voltammetry shows that PPy has a good electrochemical activity.

关 键 词：聚吡咯 正交 循环伏安 电化学性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]