Preparation and characterization of proton conducting polymer blend electrolytes (PVC/PMMA/NH4SCN)

Abstract

In the current study, proton conducting polymer blend electrolytes have been prepared with poly (vinyl chloride) (PVC), poly(methyl methacrylate) (PMMA), Ammonium thiocyanate (NH 4 SCN) salt and Tetrahydrofuran (THF) as solvent through solution-casting method. The complexation of these films have been studied by FTIR spectroscopy. The increase in amorphousness of the films with the increase in NH 4 SCN content has been confirmed by XRD analysis. The effect of salt concentration and the ionic conductivity of the polymer blend films have been analyzed by using AC impedance spectroscopy. At room temperature, prepared blend polymer electrolyte system PVC (50 wt.%)/PMMA (25 wt.%). NH 4 SCN (25 wt.%) has been established with highest ionic conductivity of 1.06 × 10 -8 S/cm. Dielectric relaxation studies of the polymer blend electrolyte film have been studied. The rise of the dielectric polarization of the films is proved by increase in dielectric constant and dielectric loss. The peaks appeared in the imaginary part of the electric modulus reveals the ion conduction occurs through the relaxation dynamic.

Enhancing the microstructural, optical, and tensile properties of the PVC‐PMMA blend film: The role of PbO nanoparticles incorporation

“…16 The band at 1428 cm À1 describes the asymmetric bending vibration of the methyl group (CH 3 ) in PMMA 37 besides CH 2 wagging in PVC. 16 The band at 2971 cm À1 describes the C H stretching vibration mode, 1,36 which increases to 2975 cm À1 after loading 4 wt.% PbO while the band at 2916 cm À1 arises from the asymmetric stretching of C H of CH 2. 1 The changes in blending PVC with PMMA (compared to pure PVC and PMMA) were due to the interactions between PVC and PMMA such as H bonding in addition to the dipole-dipole interactions.…”

“…16 The band at 2971 cm À1 describes the C H stretching vibration mode, 1,36 which increases to 2975 cm À1 after loading 4 wt.% PbO while the band at 2916 cm À1 arises from the asymmetric stretching of C H of CH 2. 1 The changes in blending PVC with PMMA (compared to pure PVC and PMMA) were due to the interactions between PVC and PMMA such as H bonding in addition to the dipole-dipole interactions. 41 The H bonding between α-H from PVC and the C O group from PMMA is critical to the miscibility of the two polymers.…”

“…This is mainly due to the multi-functionality of these materials. [1][2][3][4][5][6][7] PNC films could be used in a variety of applications, including batteries, 1 biomedical, 2 electromagnetic interference shielding, 3 water treatments & filtration processes, 4 fire retardants, 5 pharmacological, 6 and sensor applications. 7 These nanocomposites are composed of two main components, the polymeric matrix (polymer or a blend) and the nanomaterial component, usually inorganic nanofillers such as metal oxides in the form of nanoparticles (NPs).…”

“…The polymer nanocomposite (PNC) films still attract many researchers around the world. This is mainly due to the multi‐functionality of these materials 1–7 . PNC films could be used in a variety of applications, including batteries, 1 biomedical, 2 electromagnetic interference shielding, 3 water treatments & filtration processes, 4 fire retardants, 5 pharmacological, 6 and sensor applications 7 .…”