High Resolution Xps Study of the Electronic Structure of Polyaniline
Oligomers and polymers of aniline have been synthesized by organic and electrochemical ways respectively. The electronic structure of the base forms of these materials has been investigated by XPS using a SCIENTA 300 spectrometer for films study and a HP 5950A for powders. The two componants of the N1s core level peak (related to amine and imine nitrogens functions present in the oxidized base forms) are clearly separated owing the the good XPS resolution.
From the date recorded on oligomers, we have also studied in details the protonated emeraldine form of the polyaniline and have clarified the delocalization of the charged defects along the chain as a function of the solution acidity.
KeywordsCore Level Core Level Spectrum Amine Nitrogen Charged Defect Imine Nitrogen
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