Electroactive self-doped poly(amic acid) with oligoaniline and sulfonic acid groups: synthesis and electrochemical properties.
A novel poly(amic acid) with pendant aniline tetramer and sulfonic acid groups (ESPAA) was synthesized by ternary polymerization and characterized by Fourier-transform infrared spectra, ((1))H NMR and gel permeation chromatography. The polymer showed good thermal stability and excellent solubility in the common organic solvents. The electrochemical properties were investigated carefully on a CHI 660A Electrochemical Workstation. The polymer displayed good electroactivity in acid, neutral and even in alkaline solutions (pH=1-10) due to the self-doping effect between aniline tetramer and sulfonic/carboxylic acid groups. It also exhibited satisfactory electrochromic performance with high contrast value, acceptable coloration efficiency and fast switching time in the range of pH=1-9.
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, PR China.
Maoqiang
M
Chi
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, PR China.
Shutao
S
Wang
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, PR China.
Yuan
Y
Liang
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, PR China. Electronic address: chaodanming@jlu.edu.cn.
Danming
D
Chao
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, PR China. Electronic address: cwang@jlu.edu.cn.
Ce
C
Wang
D000814:Aniline Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D004396:Coloring Agents / Q000138:chemical synthesis / Q000737:chemistry*; D055664:Electrochemical Techniques; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D012995:Solubility; D013451:Sulfonic Acids / Q000138:chemical synthesis / Q000737:chemistry*
D000814:Aniline Compounds; D004396:Coloring Agents; D011108:Polymers; D013451:Sulfonic Acids; C023650:aniline
Electroactive; Electrochromic; Oligoaniline; Polyaniline