[In situ UV-visible absorption spectrum monitoring the electrochemical degradation of PAn films].
Kinetic degradation process of PAn films during aniline polymerization was in situ monitored by UV-Visible absorption spectrum. The effects of anodic potential, acidity and monomer concentration on the degradation process were also investigated. The experiment results displayed that the more positive the anodic potential, the higher the acidity of the solution, the higher the concentration of aniline, the faster the PAn films degradation speed. Which was similar to the results obtained when the kinetic degradation process of PAn films was studied in blank solutions by cyclic voltammetry.
Jiang
Chun-Ming
CM
School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
Zhang
Hang-Chang
HC
Lin
Xiang-Qin
XQ
Bai
Ru-Ke
RK
D000814:Aniline Compounds / Q000737:chemistry*; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D007700:Kinetics; D008567:Membranes, Artificial; D011108:Polymers / Q000737:chemistry*; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D013464:Sulfuric Acids / Q000737:chemistry; D013499:Surface Properties
D000814:Aniline Compounds; D008567:Membranes, Artificial; D011108:Polymers; D013464:Sulfuric Acids; C416807:polyaniline; C033158:sulfuric acid