الفهرس 
Introduction & aim of the workOnly 14 pages are availabe for public view
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Abstract
The present work is divided into two parts which includes two systems, respectively. The first system is now public entitle ”Physical properties of MnCl2 fillers incorporated into PVDF/PVC blend and their complexes” in which, the films of PVDF/PVC blend filled with different concentrations of MnCl2 were prepared using casting technique. While the second system is entitle ”Influence of HAp filler on the structural and some physical properties of polyvinylpyrrolidone films” in which, pure HAp powder is prepared by precipitation method and PVP/HAp composites films also prepared by casting technique as all samples are in films form. For the first system, the prepared films were investigated by different techniques. X-Ray diffraction scans reveal the amorphous nature of the blend for low concentrations and crystalline nature or crystal growth of the blend for higher concentrations. FT-IR spectra show some changes in the position and the intensity of some absorption bands. The morphological structure for the prepared samples was discussed by using SEM which shows polycrystalline phase appears for higher concentrations of MnCl2. ESR spectra of all samples under investigation were exhibit resonance signals after introducing Mn ions into the blend. DC conductivity increased as MnCl2 content increased. While for the second system, in XRD, sharp peaks appear at about 2=17°, 23°, 29° and 45°, which indicates the complexation between the PVP and HAp. Also XRD showed the concentration 15 wt% is the most confirmation for the formation of HAp in the presence of the polymer which will also be confirmed by SEM and EDX analysis. SEM also shows more than one form of HAp such as plates, needles and bundles in the morphological structure of pure HAp and 15 wt% of HAp in PVP/HAp films DSC thermographs of PVP as a host material with different concentration of HAp in the temperature range of 50 C to 600 C. The thermographs are characterized by five main endothermic peaks. The values of the glass transition temperatures of both Tg1 and Tg2 are decreased with increasing the content of the HAp filler which suggest that the HAp filler act as plasticizer.