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.
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.
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.
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.
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
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.
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.
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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