FTIR Studies on PMMA‐LiNO₃ Polymer Electrolyte

Abstract

Flexible and free standing solid polymer electrolytes are prepared using solution casting technique comprising PMMA and LiNO3. The properties of the polymer system are further improved by adding nanofillers to the polymer matrix. Hence in the present work, the nanofiller Al2O3 is added to PMMA‐LiNO3 network. The increase in amorphous nature of the polymer with increase in LiNO3 and Al2O3 is revealed by XRD. The interaction of LiNO3 and Al2O3 with the polymer PMMA is analyzed by FTIR.

Thermal, Magnetic and Electrical Properties of PMMA Nanocomposites with Manganese and Zinc Ferrite Nanoparticles and Their Functionalization

“…Figure 6 shows the FTIR spectrum of the composites. from that, were observed at 2995–2950 cm −1 (−CH 3 and −CH 2 stretching, respectively), 1432 cm −1 (−CH 2 ; bending vibration), 1385–749 cm −1 (α‐methyl group vibrations), and 1062 cm −1 (C−O; bond stretching) [35,65,66] . Furthermore, PMMA absorption bands at 1190–1141 cm −1 and shifting of oxygen bonded to CH 3 (ether group O‐CH 3 ) were also identified, proving that the in situ production of composites did not harm the proper formation of the polymer.…”

“…from that, were observed at 2995-2950 cm À 1 (À CH 3 and À CH 2 stretching, respectively), 1432 cm À 1 (À CH 2 ; bending vibration), 1385-749 cm À 1 (α-methyl group vibrations), and 1062 cm À 1 (CÀ O; bond stretching). [35,65,66] Furthermore, PMMA absorption bands at 1190-1141 cm À 1 and shifting of oxygen bonded to CH 3 (ether group O-CH 3 ) were also identified, proving that the in situ production of composites did not harm the proper formation of the polymer. It is noteworthy that the insertion of fillers in the matrix favored increasing the variation in the dipole moment of the characteristic groups of PMMA due to the dipolar interaction of zinc and manganese ferrites with the polar groups of polymers, such as oxygen from the acrylate group.…”

The study of optical and photodielectric properties of polymethyl methacrylate and tris‐(8‐hydroxy‐quinoline) aluminum (Alq3) composites

“…The peaks at 912 and 842 cm À1 are assigned to CH 2 rocking. [28][29][30] The spectra of the Alq3 is shown in Figure 2 in range of 500-2000 cm À1 . The characteristic bands of Alq3 are the CÀC stretching vibration (1580, 1500, 1472, 1382 and 748 cm À1 ), CÀN stretching vibrations (1281 and 1229 cm À1 ), CÀCÀH bending vibration (1500, 1425, 1327, 1280 and 1116 cm À1 ), CÀCÀC bending vibrations (806 and 748 cm À1 ), C-pyramidalization mode (825 and 789 cm À1 .…”

A Strategy for Preparing Solid Polymer Electrolytes Containing In Situ Synthesized ZnO Nanoparticles with Excellent Electrochemical Performance

“…As an alternative solid electrolyte, the solid polymer electrolyte (SPE) has elicited extensive concern due to its good film-forming property, flexibility, safety, and interface compatibility [ 9 ]. The matrix used in the SPE can be divided into polyacrylonitrile [ 10 , 11 ], polyvinylidene fluoride (PVDF) [ 12 , 13 ], polymethyl methacrylate [ 14 , 15 ], and polyethylene oxide (PEO) [ 16 , 17 , 18 ]. Among them, PEO is a polymer of greatest interest in the SPE because of its low cost, excellent mechanical performance, high dielectric constant, and good compatibility with lithium salts and lithium metals [ 3 , 16 , 18 ].…”

“…The used inorganic fillers usually present a good stiffness, thermal stability, and chemical stability, which can be combined with the good toughness, dielectric property, and processing ability involved in the polymers [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 21 , 22 , 23 , 24 , 25 , 26 ]. Consequently, the composites composed of the inorganic fillers and the polymers demonstrate an excellent performance.…”