초록 |
In this experiment, the electrochromic material was synthesized using bipyridyl to synthesize high molecular viologen according to the characteristics of various positions and functional groups, and the electrochromic characteristics were compared using this. The synthesized polymer was analyzed by FT-NMR and FT-IR. Through this, the electrolyte was manufactured and a sandwich-type cell was manufactured and various electrochromic characteristics were measured. As a result, it was confirmed that the material substituted at the ortho site of benzidine showed lower electrochromic characteristics such as discoloration efficiency and stability than the material substituted at the meta site. It was confirmed that all polymers except for -CF3 substituted at the ortho site showed more than 100㎠/C, and the group that pushed electrons at the meta site maintained a high transmittance difference for a long time. |