Electrochemical performance of electroactive poly(amic acid)-Cu2+ composites

Abstract

Electroactive poly(amic acid)-Cu 2+ (EPAA-Cu) composites on the substrates have been prepared, whose electrochemical properties, including electroactivity, electrochromism and anticorrosion, reveal drastic enhancement after incorporation of Cu 2+ ions.

In Situ Redox Synthesis of Highly Stable Au/Electroactive Polyimide Composite and Its Application on 4-Nitrophenol Reduction

“…The absorption peaks found in UV-Vis spectra started a blue shift from 315 nm to 310 nm, which results accompanied by a decrease in intensity. At the same time, a new absorption peak appeared at 575 nm to 570 nm [ 44 ], which was related to the excitation-type transition between the HOMO orbital of the benzenoid ring and the LUMO orbital of the quinoid ring. Possible mechanism for this behavior can be interpreted as follows: Initially, EPI-5 reaches the LEB state of the ACAP segment through the reducing agent, hydrazine, and there is no quinone ring in the state.…”

“…in addition, the intensity of C=C stretching vibration for benzenoid ring decrease was observed. Ascribed to the redox reaction between Au ions and EPI-5, leading to a decrease in the intensity ratio of benzene rings (B) to quinone rings (Q) with increasing amounts of reduced AuNPs [ 44 ]. Indicating the ratio of benzene rings(B) to quinone rings (Q) according to Table 1 .…”

Synthesis and characterization of aniline-dimer-based electroactive benzoxazine and its polymer

“…The corrosion potential (E corr ) and the corrosion current (I corr ) were obtained by the extrapolation method. The polarization resistances (R p ) and the corrosion rate (R corr ) were calculated from E corr and I corr by using the previously reported formula 33,34 ( Table 2). The I corr of metal substrate decreased from 82.36 to 3.46 mA cm À2 due to the barrier property of PBA-AN coating.…”