摘要
以三氯化铁(FeCl3)为氧化剂,对甲苯磺酸钠(TSANa)为掺杂剂,使进入经有机插层剂改性的有机蒙脱土(OMMT)层间的吡咯(Py)发生氧化聚合反应,制备了具有良好导电性的聚吡咯/有机蒙脱土(PPy/OMMT)纳米复合材料。结果表明,采用插层剂为十八烷基三甲基氯化铵(OTAC)改性的有机蒙脱土OMMT-O,FeCl3与Py的摩尔比为2 14,Py与OMMT-O的质量比为0 24,TSANa的浓度为0 023g·ml-1,在20℃反应6h,得到的PPy/OMMT-O纳米复合材料的电导率达到3 07S·cm-1。XRD测试表明,在形成复合材料过程中PPy已经插层进入到蒙脱土的片层中。
Conductive polypyrrole/organophilic montmorillonite(PPy/OMMT) nanocomposites have been prepared by chemical oxidative polymerization of pyrrole (Py) intercalated into the interlayer of OMMT modified with organic intercalant, using FeCl3 and toluene-p-sulfonic acid sodium salt(TSANa) as oxidant and dopant respectively. It was found that conductivity of PPy/OMMT-O nanocomposite was 3.07 S·cm^(-1) when organophilic montmorillonite OMMT-O modified with octadecyl trimethyl ammonium chloride(OTAC) was used, the molar ratio of FeCl3 and Py was 2.14,the mass ratio of Py and OMMT was 0.24,concentration of TSANa was 0.023 g·ml^(-1),the polymerization time and temperature were 6h and 200C respectively. The XRD results showed that polypyrrole has been intercalated into the interlayer of organophilic montmorillonite.
出处
《化学与粘合》
CAS
2005年第3期127-130,共4页
Chemistry and Adhesion
基金
教育部高等学校骨干教师资助项目 (教技司 2 0 0 0 -6 5)
华南理工大学高水平大学建设资助项目 (B0 9-3 3 8)
