Effect of mortar-pestle grinding on conductivity of ferric chloride doped polypyrrole
With four-probe technique, we investigated the effects of the mortar-pestle grinding on the conductivity of ferric chloride doped conducting polymer polypyrrole, which had been synthesized by in situ polymerizing the monomer pyrrole in aqueous solutions in the presence of the oxidant iron (III) chloride. As the mortar-pestle grinding duration increased from O to 4 hours, the conductivity of the synthesized polypyrrole was found to decrease from about 100 to 10 S/m. In the meantime, the sizes of the grinded polymeric particles were found to decrease from 40.6 to 3.36 um as the grinding duration increased from O to 4 hours. Our results demonstrated that the grinding shortened conjugation lengths of the polymeric chains should be responsible for the decrease in the conductivity of the polymer.
Mortar-pestle grinding Polypyrrole Conductivity Conjugation length Laser light scattering
Yuan Ming Huang Fu-fang Zhou Zhuo-ran She Chunxu Pan
College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China Departme School of Physical science&Technology,Southwest University chongqing,China Department of Physics, Wuhan University, Wuhan, Hubei 430072, China
国际会议
2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)
昆明
英文
497-500
2009-08-02（万方平台首次上网日期，不代表论文的发表时间）