Publications

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2021
El‑Khiyami, S. S., A. M. Ismail, and R. S. Hafez, "Characterization, Optical and Conductivity Study of Nickel Oxide Based Nanocomposites of Polystyrene", Journal of Inorganic and Organometallic Polymers and Materials , vol. 31, pp. 4313–4325 , 2021.
El‑Khiyami, S. S., and R.S.Hafez, "Dielectric study and Cole–Cole plots of poly(methyl methacrylate) doped with nanostructured metal oxides", journal of polymer research, vol. 28, pp. 396 , 2021.
R.S.Hafez, R. Ramdan, and S. S. El‑Khiyami, "Investigation of structural, optical, magnetic, and electrical properties of PMMA doped with magnetite nanoparticles", J Mater Sci: Mater Electron , vol. 32, pp. 14557–14568, 2021.
2020
R.S.Hafez, N. A. Hakeem, A. A. Ward, A. M. Ismail, and A. F. H. El‑kader, "Dielectric and Thermal Properties of PEO/PVDF Blend Doped with Diferent Concentrations of Li4Ti5O12 Nanoparticles", Journal of Inorganic and Organometallic Polymers and Materials , vol. 30, pp. 4468–4480, 2020.
R.S.Hafez, and S. El-Khiyami, "Effect of copper (II) nitrate 3H2O on the crystalline, optical and electrical properties of poly(vinyl alcohol) films", polymer research, vol. 27, 2020.
2017
E-Kader, F. H. A., N.A.Hakeem, R.S.Hafez, and A.M.Ismail, "Effect of Li4Ti5O12 Nanoparticles on Structural, Optical and Thermal Properties of PVDF/PEO Blend", journal of inorganic and organometalic polymers and materials , vol. 27, pp. 1-12, 2017. paper_2.pdf
2016
F.H, A. E. - K., W.H.Osman, K. A. A. El-Ghany, H.S.Ragab, and R.S.Hafez, "Gamma irradiation effect on poly methyl methacrylate/ poly vinyl acetate blend contaning malachite green", Middle east journal of applied sciences, vol. 06, issue 01, pp. 78-89, 2016.
Fewaty, N. H. E., A.M.ElSayed, and R.S.Hafez, "Synthesis, Structural and Optical Properties of Tin Oxide Nanoparticles and Its CMC/PEG_PVA Nanocomposite Films", Polymer science, Series A, vol. 58, issue 6, pp. 1004-1016, 2016.
2013
F.H.Abd-Kader, W.H.Osman, and R.S.Hafez, "DC conduction mechanism and dielectric properties of poly (methyl methacrylate)/ poly (vinyl acetate) blends doped and undoped with malachite green", Physica B, vol. 408, pp. 140-150, 2013.
2012
Kader, F. H. A. - E., W.H.Osman, and R.S.Hafez, "Effect of blend ratio on thermal and optical properties of poly (methyl metacrylate)/ poly (vinyl acetate) films", Materials scince, an indian journal, vol. 8, issue 12, pp. 493-502, 2012.
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