FTIR Spectral Signatures of Formamide + Propionic/Acetic Acid Solutions

A Scalable, Robust Polyvinyl‐Butyral‐Based Solid Polymer Electrolyte with Outstanding Ionic Conductivity for Laminated Large‐Area WO3–NiO Electrochromic Devices

“…To further probe the mass loss of the components, TG‐FTIR analysis was performed to acquire in situ FTIR spectra of the volatile matter obtained by heating a representative sample of BK10 (Figure 1g). The characteristic peak representing the CN bond in the acylamino group of DMA, which appears at a wavenumber of 1308 cm −1 , was not detected, [ 42 ] confirming the absence of residual DMA solvent in the foil; consequently, the as‐prepared polymer foil was validated as an SPE. [ 26 ] The minimal mass loss can be primarily ascribed to butyric acid obtained via pyrolysis of the dissociatively unreacted butyraldehyde or polyvinyl alcohol in the PVB host, which is manifested as an intense peak (1700 cm −1 ) that corresponded to the CO bond in the carboxyl group.…”