The physicochemical properties of polyindole/thiol composites

We synthesized the polyindole (PI) and poly(2,5-dimercapto-1,3,4-thiadiazole) (pDMcT) by chemical oxidation method. The polymerization of PI and pDMcT was confirmed by FT-IR. We have measured the electrochemical properties of the unit cell both before and after charge/discharge experiment. It showed the plateau region around 3.0V in discharge curve's behavior. The specific discharge capacity value of these compositions was saturated after 10th cycle as similar to75mAh/g. We have tried to explain the reaction in PI/thiol composites with various methods. The intensity of the ESR signal increases after charging and the ads of these composites increases by charging. From the results, it could be found that the formation of unpaired electrons at nitrogen site in PI is confirmed in this system.