الفهرس 
Physico-chemical and biological studies on plastic collapsible containers used for human blood and blood components
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Abstract
Polyvinylchloride (PVC) is an inexpensive commodity plastic material that is used frequently in the medical field as blood storage bags, endotracheal and dialysis tubing and intravenous catheters. Common plasticizers, namely di(2-ethylhexyl) phthalate (DEHP), are added to PVC to improve the processability and flexibility by lowering the glass transition. Plasticizers of natural origins and preferably derived from renewable resources could represent valid alternatives to solve DEHP concerns. In this thesis, essential oils include thyme and clove oils are used as green plasticizers to increase the antimicrobial and haemocompatibility of the native polymer besides improving mechanical and physical properties of the polymer itself without adding any hazard materials. The plasticized PVC with thyme and glove oils are prepared using solution casting technique. characterization methods performed include water uptake, surface wettability by contact angle measurements, optical properties by UV- Vis spectroscopy, FT-IR analysis, roughness of the surface, morphology of polymer surface by scanning electron microscope, mechanical tensile properties and TGA analysis. It was found that the optical properties did not significantly change with the addition of thyme oil and clove oils. The wettability of the plasticized PVC membranes compared with neat PVC slightly improved. The tensile tests the tensile strength decreased, while the elongation increased with increasing the concentration of the addition essential oils