Effect of Sm3+ ions on structural and thermal properties of PVA+PEG nano polymer films.

A series of complex blended polymer films of poly (vinyl alcohol) (PVA) and poly (ethylene glycol) (PEG) with doping of various concentrations of active Sm³⁺ ions (1-5 mol %) were synthesized by the mechanism of solution casting technique. From the analysis of X-ray diffraction (XRD) and FTIR spectra, the structural analysis and molecular level interactions were observed, which results in reduction of the poly crystalline nature of the blended films. Scanning electron microscopy (SEM) studies reveals the uniform dispersion and coordinated complexes formation over the surface. Thermo gravimetric analysis (TGA) and Differential scanning calorimetric (DSC) analysis are used for examination of thermal behavior of the polymer blends, which shows enhancement in their thermal degradation and strength. The complex miscible polymer blends (PVA+PEG) doped with 5.0 mol % of Sm³⁺ ions are acting as a prominent host material for designing and development of opto electronic and luminescent devices. [ABSTRACT FROM AUTHOR]