Effect of Dopants on Microstructure and Properties of Polyaniline and Polypyrrole
Polyaniline (PANI) and polypyrrole (PPy) doping with hydrochloric acid (HC1), p-toluenesulfonate (pTSA) were successfully synthesized by chemical oxidation polymerization. Ammonium peroxydisulfate was used as an oxidizing agent at room temperature. Microstructure of PPy and PANI was studied by scanning electron microscopy (SEM). Discussed the acid concentration how influenced on the electrical conductivity properties of PANI and PPy, and also compared their resistivity and thermal stability. The results showed that HC1 effectively improved conductive properties of PANI in a wide range concentrations, and pTSA in narrow range concentrations. When doping with HC1, the minimum volume resistivity of PANI was 0.24 Ω · cm, and PPy was about 10.5 Ω · cm. When doping with pTSA, the volume resistivity minimum of PANI was 1.3 Ω·cm, and PPy was 15.8 Ω· cm. The conductivity of PPy was weaker than PANI. The thermal stability of conducting polymers which doping with pTSA was better than which doping with HCl.
Polyaniline Polypyrrole Doping Electrical conductivity
Lei Yang Chang Sen Zhang
School of materials science and engineering, Changzhou University, Chang Zhou, Jiang Su, China School of materials engineering, Yancheng institute of technology, Yan Cheng, Jiang Su, China
国际会议
2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)
广州
英文
1576-1579
2011-11-18（万方平台首次上网日期，不代表论文的发表时间）