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Effect of Ionizing Radiation on the Morphological, Thermal and Mechanical Properties of Polyvinyl Alcohol/Polyethylene Glycol Blends

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Abstract

Blends of water—soluble polymers based on Poly vinyl alcohol (PVA) and Polyethylene glycol (PEG) have been prepared by the solution casting technique. The effect of various doses of γ-radiation on the structural properties of PVA/PEG polymer blends with all its compositions has been investigated. From the visual observation of all the blend compositions, it was found that, the best compatibility of the blend is up to 40% PVA/60%PEG. The structure–Property behavior of all the prepared blends before and after γ-irradiation was investigated by IR Spectroscopy, thermogravimetric analysis (TGA), mechanical properties and Scanning electron microscope (SEM). The gel content and the swelling behavior of the PVA/PEG blends were investigated. It was found that the gel content increases with increasing irradiation dose and PVA concentration in the blend. Swelling percent increased as the composition of PEG increased in the blend. The results obtained by FTIR analysis and SEM confirm the existence of possible interaction between PVA and PEG homopolymers. TGA of PVA/PEG blend, before and after γ-irradiation, showed that the unirradiated and irradiated PVA/PEG blends are more stable against thermal decomposition than pure PVA. Improvement in tensile mechanical properties of PVA/PEG blends was occurred.

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Authors and Affiliations

  1. Department of Radiation Chemistry, National Center for Radiation Research and Technology, P.O. Box 29, Nasr City, Cairo, Egypt

    K. Abdel Tawab, M. M. Magida & Sayeda M. Ibrahim

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  1. K. Abdel Tawab
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  2. M. M. Magida
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  3. Sayeda M. Ibrahim
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Correspondence to Sayeda M. Ibrahim.

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Abdel Tawab, K., Magida, M.M. & Ibrahim, S.M. Effect of Ionizing Radiation on the Morphological, Thermal and Mechanical Properties of Polyvinyl Alcohol/Polyethylene Glycol Blends. J Polym Environ 19, 440–446 (2011). https://doi.org/10.1007/s10924-011-0294-4

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  • DOI: https://doi.org/10.1007/s10924-011-0294-4

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