柠檬酸复合掺杂剂制备聚苯胺及其性能  

Synthesis of Polyaniline Doped with Complex Dopant of Citric Acid and Its Properties

作　　者：袁美华[1] 古绪鹏[1] 孙丽娜[1] 夏友谊[1] 昌兴龙[1] 

机构地区：[1]安徽工业大学化学与化工学院,安徽马鞍山243002

出　　处：《精细化工》2012年第12期1154-1157,共4页Fine Chemicals

摘　　要：该文以十二烷基苯磺酸与柠檬酸复合掺杂剂制备聚苯胺,对聚苯胺的电导率、溶解性、电致变色性能进行了研究,采用循环伏安法、红外光谱、热重对聚苯胺进行了表征,结果表明,柠檬酸与十二烷基苯磺酸摩尔比为1∶1时,聚苯胺的电导率最大,可达6.67 S/cm;二者摩尔比为0.25∶1时,聚苯胺在二甲苯中的溶解度为1.475 8 g,在1.5 V电压下变色均匀,响应时间短,可实现黄—黄绿—绿—蓝—深蓝范围内的可逆变色。Polyaniline doped with dodecylbenzenesulfonic acid （DBSA） and citric acid was prepared and characterized by means of CV, thermogravimetric analysis and FTIR. The conductivity, solubility and electrochromism of polyaniline were studied. The results show that,when the molar ratio of DBSA to citric acid is 1：1, the conductivity reaches the maximum,which is 6.67 S/cm. When the molar ratio of DBSA to citric acid is 0.25 ： 1, the solubility of polyaniline in dimethylbenzene is 1. 475 8 g and can realize uniform electrochromism at - 1.5 - 1.5 V voltages. The electrochromic range is yellow-yellow green-green-blue-deep blue with short response time and the change is reversible.

关 键 词：聚苯胺 柠檬酸 可加工性 电致变色 功能材料 

分 类 号：TQ31[化学工程—高聚物工业]