Spectroscopic and electrochemical studies on block‐polymer/PMMA blend based composite polymer electrolytes

Abstract

Poly(methylmethacrylate)(PMMA)/oxymethylene-linked polyoxyethylene multi-block polymer(Om-POE n , where n represents number of unit À ÀCH 2 CH 2 OÀ À) blend based composite electrolyte films containing different lithium salt concentration and nanofillers' content are prepared using solvent evaporation technique. The interaction of polymersalt complex has been confirmed using FTIR spectral studies. The figuration of CPE was studied by XRD. Ionic conductivity and thermal behavior of the CPEs were studied with various salt concentrations, temperature, and nanofillers' content. The surface structure of the CPE is also investigated using scanning electron microscopy. The high room temperature ionic conductivity, transmittivity in the visible region, and thermal stability make these CPEs potential candidates as solid-like electrolytes for electrochemical devices.

Supramolecular graphene oxide-alkylamine hybrid materials: variation of dispersibility and improvement of thermal stability

“…2. 37,38 The characteristic peaks of GO appear at 1725 cm À1 (CQO carboxyl stretching vibration band), 1581 cm À1 (CQC in aromatic ring) and 1047-1227 cm À1 (COH/COC). 7,17 After modification, the band of GO at 1725 cm À1 disappears and a new band at 1541-1603 cm À1 , assigned to the carboxylic acid salt (COO À ) asymmetric stretch mode, is observed.…”

Compliant gel polymer electrolyte based on poly(methyl acrylate-co-acrylonitrile)/poly(vinyl alcohol) for flexible lithium-ion batteries

“…The cells were cycled at a constant voltage constant current charge/discharge current density of 0.2 C (≈0.3 mA cm −2 )/0.2 C over a voltage range between 3.0 and 4.2 V (vs. Li/Li + ) for LiCoO 2 cathode and 0 and 2.0 V for graphite anode. [7,21]. The monomer AN is characteristic of the absorption peaks at 1619 and 2239 cm −1 , which corresponds to the bonds C C and C N, respectively [7,14].…”

A stabilization of the electrospun, modified polyacrylonitril with functionalized single-walled carbon nanotubes

“…49,50 Characteristic peaks at 1631 and 1732 cm −1 , which correspond to bonds C‚C and C‚O, respectively, have been recorded for the PMMA polymer. 51,52 For P (AN-co-MMA), the presence of peaks at 1730 and 2243 cm −1 , and the disappearance of peaks at 1629 or 1631 cm −1 , could be seen easily. This indicates that the copolymerization process has been realized by breaking double bonds in both monomers (AN) and (MMA).…”