摘要
以三氯化铁(FeCl3)为氧化剂,对甲苯磺酸钠(TSANa)为掺杂剂,在水中使吡咯(Py)单体在二氧化硅(SiO2)粒子表面发生化学氧化聚合反应,制备了具有良好导电性的聚吡咯/二氧化硅(PPy/SiO2)复合材料。结果表明:当FeCl3与Py的摩尔比为2 5,Py与SiO2的质量比为0 3,TSANa的浓度为0 020g·ml-1,在10℃下反应4h,得到的复合材料具有最高电导率12 6S·cm-1。FT-IR结果表明:在形成复合材料过程中PPy与SiO2发生了一定的物理和化学作用。
Polypyrrole/silica (PPy/SiO_2)composite was prepared by oxidative polymerization of pyrrole (Py) on the surface of SiO_2, with FeCl_3 and toluene-p-sulfonic acid sodium salt (TSANa) as oxidant and dopant respectively.It was found that the conductivity of PPy/SiO_2 composite prepared at 10℃ was 12.6 S·cm^(-1) when the molar ratio of FeCl_3 to Py was 2.5,the mass ratio of Py to SiO_2 was 0.3,the concentration of TSANa was 0.020 g·ml^(-1) and the polymerization time was 4 h.The FT-IR results showed the physical and chemical interactions occurred between PPy and SiO_2.
出处
《化学与粘合》
CAS
2005年第1期1-4,共4页
Chemistry and Adhesion
基金
教育部高等学校骨干教师资助计划(教技司[2000]65)
华南理工大学高水平大学建设资助项目(B09-338)
