摘要
通过正交实验确定了微波辐射法合成聚吡咯的最佳条件.结果表明,微波辐射条件下,以吡咯（Py）为单体,当微波功率为10 W,十二烷基苯磺酸钠（SDBS）的质量浓度为0.02 g/mL,温度为0℃,反应30 min时,所得聚吡咯各项性能最好,其电导率可达67.32 S/cm,所得聚吡咯颗粒粒径在20 ～ 80 nm之间.通过FTIR、SEM等方法对所得材料的结构、形貌进行了表征,利用四探针技术测试了材料的电导率,利用热失重（TG）法对所得产物的热稳定性进行研究.通过微波辐射法成功合成了聚吡咯纳米材料,实验结果表明微波辐射在一定程度上改善了聚吡咯的形貌、结构与性能.此外,与一般化学氧化方法相比,微波辐射法显著缩短了反应时间,且未使用氧化剂,节约了生产成本.通过对微波辐射法制备聚吡咯的研究,期望能为将来大规模生产性能优异的聚吡咯提供一种新的可行工艺方案.
The optimized condition of polypyrrole （PPy） synthesized by orthogonal tests with microwave radiation method was studied. The results showed the properties of the PPy were the best when the microwave power was 10 W, the mass concentration of sodium dodecylbenzen sulfonate （SDBS） was 0. 02 g/mL at 0℃ for 30 min, the electrical conductivity R = 67.32 S/cm. The particle diameter of PPy nanoparticles varied between 20 to 80 nm. The structure and morphology of the material were characterized by FTIR and SEM. The four-probe technique was used to test the electrical conductivity of the material. The thermal stability of PPy was characterized by thermogravimetric analysis （TG）. Polypyrrole （PPy） was synthesized. It proved that with microwave radiation method, the morphology, structure and properties of PPy were improved. Compared with chemical oxidation method, the microwave radiation shorted the reaction time, saved the cost of production without the oxidants, hoping for a new feasible process in the future for large-scale production of polypyrrole.
出处
《塑料工业》
CAS
CSCD
北大核心
2014年第2期15-19,共5页
China Plastics Industry
关键词
微波辐射法
聚吡咯
纳米材料
电导率
Microwave Radiation Method
Polypyrrole
Nanomaterials
Electro Conductivity
