الفهرس 
Aim of the work
Lithium ChlorideOnly 14 pages are availabe for public view
 |  | from | 150 |  |  |
| | | from | 150 | | |
Abstract
Polyethylene oxide (PEO) and polyvinyl alcohol (PVA) were blended and doped with various concentrations of LiCl using casting method. Verifications of the changes in the structural, optical, thermal and electrical properties are studied. FT-IR analysis is confirmed the complexation interaction the blends and Li-ion. The change in the intensity with shift of IR-bands indicates that between and compatibility between PVA/PEO with LiCl takes place. X-ray diffraction for LiCl indicated the complete dissolution of the filler in amorphous regions of the blend resulting in a decrease of crystallinity with rich amorphous phase in the polymer. The UV-Vis spectra suggested presence of a band gap which depends on the LiCl concentrations. The absorption intensity for the samples doped with LiCl become faint lower than pure blend. The peak position at 370 nm is shifted toward higher wavelengths with increasing of LiCl indicates the formation from intermolecular of hydrogen bonding between Li-ions with OH groups that are in consistence with IR results. The values of energy gap for direct and indirect transition decreases with the increase of LiCl indicate to presence of charge transfer between PVA/PEO and LiCl. TGA curves for all the samples have the same behavior with more steps of decomposition from the samples are observed. The reduction of mass loss for the samples contains LiCl compared to pure blend due to crosslink formation. Morphological properties were studied using scanning electron microscope (SEM(. SEM studies revealed changes in surface morphology of pure blend with addition of filler. The values of DC conductivity are modified and improved suggest that this system can be used in rechargeable lithium batteries.