摘要
掺杂是获得高导电性聚苯胺的重要手段。本文采用盐酸进行掺杂,通过实验研究了不同条件下盐酸掺杂对聚苯胺基本性能的影响,优化了制备聚苯胺的工艺条件。当过硫酸铵与苯胺比为1时,聚合产率高达66.14%;当盐酸浓度为1.5mol/L时,室温下反应12h导电性最好。制备了聚苯胺样品,并对样品进行了FT-IR、SEM、XRD测试。结果均表明盐酸掺杂聚苯胺的反应主要发生在醌环上,掺杂后聚苯胺有一定的结晶性,且呈微纳米颗粒状、分布均匀,电导率达到1.29S.cm-1。正交试验得出的优化工艺为:盐酸浓度为1.0mol.L-1,氧化剂与苯胺单体摩尔比为1∶1,室温条件下反应4h。
The doping is important method to obtain high conductivity polyaniline. The Dope with hydrochloric acid, propertied of synthesis polyaniline in difference process conditions are researched by experimental method and the processing conditions are optimized. The ployaniline yield is up 66.14 % when the ratio of ammonium persulphate to aniline is one. The conductivity of polyaniline reached best when the concentration of hydrochloric acid is 1.5mol/ L and after reacting time is 12 hours in room temperature. The microstructure and performances of polyaniline doped by hydrochloric acid is analyzed by infrared spectroscopy, X-ray diffraction and scanning electronic microscope. The results demonstrate that the reaction of polyaniline doped by hydrochloric acid happen in quinine ring. The dope polyanilines of fabrication have a certain of crystal degree, micron/nano-partieles state, uniformity distribution, and the conductivity reach 1.29S·cm^-1 . Optimization Process obtained by orthogonal test：the concentration of hydrochloric acid 1.0mol·L^-1, Molar ratio of oxidants with polyaniline Monomer 1 ： 1, and reaction time in room temperature condtion 4h.
出处
《高分子通报》
CAS
CSCD
北大核心
2009年第12期49-54,共6页
Polymer Bulletin
基金
国家自然基金委主任基金(批号:50545028)
苏州科技学院校科学研究基金(批号:330790013)
关键词
盐酸掺杂
聚苯胺
工艺优化
特性测试
HCl-doped
Polyaniline
Processing optimum
Characteristics test
