In situ UV-Vis spectroelectrochemical studies to identify electrochromic sites in poly(1-naphthylamine) modified by diphenylamine.
Poly(1-napthylamine) (PNPA) was modified by incorporation of diphenylamine (DPA) to result copolymer film on the indium tin oxide (ITO) coated glass electrode using cyclic voltammetry. Detailed static and dynamic UV-Vis spectroelectrochemical studies were performed on the copolymer films to identify the electrochromic sites corresponding to individual DPA and NPA units. Absorbance-wavelength-potential (AWP) profiles were constructed from the dynamic spectroelectrochemical results to infer the electrochromic sites. The advantages of using AWP profile in the analysis of electrochromic sites are discussed.
Chung
Chein-Yie
CY
Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
Wen
Ten-Chin
TC
Gopalan
A
A
D004159:Diphenylamine / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods*; D011073:Polyamines / Q000737:chemistry*; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet
D011073:Polyamines; D004159:Diphenylamine