Based on experimental data, the doping and conductive characters of conjugated polymershaving conjugated triple bond have been analyzed in detail, the doping mechanism for poly-diacetylenes (PDA’s) has been explored ...Based on experimental data, the doping and conductive characters of conjugated polymershaving conjugated triple bond have been analyzed in detail, the doping mechanism for poly-diacetylenes (PDA’s) has been explored preliminarily. A doping model is presented in thelight of structural phase transition. The energy required for causing structural phasetransition of chain segment is estimated. The reason why polydiacetylene crystal dopingfailed is explained.展开更多
The conductivity of Polypyrrole-viscose conducting fiber prepared with author’s method can be shown up to as high as 2.106x10<sup>-2</sup> S/cm. The main factors influencing the conductivity are the conce...The conductivity of Polypyrrole-viscose conducting fiber prepared with author’s method can be shown up to as high as 2.106x10<sup>-2</sup> S/cm. The main factors influencing the conductivity are the concentration of FeCl<sub>3</sub> used as dopant and initiator, the treatment time of viscose fiber as base material in FeCl<sub>3</sub> solution, temperature and polymerization time. It is found that the orientation and crystallization degree of viscose fiber keep constant before and after conducting treatment and the mechanical properties of conducting fiber is the same as that of base material. In addition, the distribution of polypyrrole in viscose fiber, and its effect on the conductivity were investigated in details by TEM.展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘Based on experimental data, the doping and conductive characters of conjugated polymershaving conjugated triple bond have been analyzed in detail, the doping mechanism for poly-diacetylenes (PDA’s) has been explored preliminarily. A doping model is presented in thelight of structural phase transition. The energy required for causing structural phasetransition of chain segment is estimated. The reason why polydiacetylene crystal dopingfailed is explained.
文摘The conductivity of Polypyrrole-viscose conducting fiber prepared with author’s method can be shown up to as high as 2.106x10<sup>-2</sup> S/cm. The main factors influencing the conductivity are the concentration of FeCl<sub>3</sub> used as dopant and initiator, the treatment time of viscose fiber as base material in FeCl<sub>3</sub> solution, temperature and polymerization time. It is found that the orientation and crystallization degree of viscose fiber keep constant before and after conducting treatment and the mechanical properties of conducting fiber is the same as that of base material. In addition, the distribution of polypyrrole in viscose fiber, and its effect on the conductivity were investigated in details by TEM.
