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Prof. Refat Moustafa Hassan Abou-Zeid

Professor, Department of Chemistry , Faculty of Science, Assiut University

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Current Address

:

Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt

Office Tel.

:

082421

Fax No.

:

0020882342708

E-Mail

:

refaat.abozaid@science.au.edu.eg

google scholar link

:

http://scholar.google.com.eg/citations?user=QlAyt90AAAAJ&hl=en
Educational Qualifications:
  • Ph. D. In ( Nuclear Reactor Engineering (Chemistry) ) , Tokyo Institute of Technology, 1982
  • M.D., 1982
  • M. Sc. ( Nuclear Reactor Engineering (Chemistry) ) , Tokyo Institute of Technology, 1978
  • M. Sc. In Chemistry ( Physical Chemistry ) , Faculty of Science, Assiut University, 1973
  • B. Sc. In Chemistry ( Special Chemistry ) , Faculty of Science, Assiut Univeristy, 1970
  • In Chemistry ( B.Sc. & Diploma of Education ) , Faculty of Education, Assiut Univeristy, 1965
  • Professor, Department of Chemistry , Faculty of Science, Assiut University, 2003
  • Associate Professor, Department of Chemistry , Faculty of Science, Assiut University, 1988
  • Lecturer, Department of Chemistry , Faculty of Science, Assiut University, 1982
  • Assistant Lecturer, Department of Chemistry , Faculty of Science, Assiut University, 1973
  • Demonstrator, Department of Chemistry , Faculty of Science, Assiut University, 1966

Research fields:
Base-catalyzed oxidation , polysaccharide inalkaline media , alginate polysaccharide inalkaline , anionic polyelectrolytes , chromic acid , oxidation , chondroitin-4-sulfate polysaccharide

Publications:

1 - Refat M. Hassan, Samia M. Ibrahim, Base-catalyzed oxidation of sulfated kappa-carrageenan by alkaline hexacyanoferrate(III): A mechanistic approach of electron-transfer process , Journal of Molecular Liquids , Elsvier, 273, 177-182, January, 2019
2 - Refat Hassan, Samia Ibrahim, Orientation on Electron-Transfer Nature for Oxidation of Some Water-Soluble Carbohydrates: Kinetics and Mechanism of Hexacholroiridate (IV) Oxidation of Methyl Cellulose in Aqueous Perchlorate Solutions, Trends Journal of Sciences Research, Scientific Research Publishing., 4 (2), 68-79, February, 2019
3 - Refat M. Hassan and Samia M. Ibrahim, Oxidation of Some Sustainable Sulfated Natural Polymers: Kinetics and Mechanism of Oxidation of Water-Soluble Chondroitin-4-Sulfate Polysaccharide by Hexachloroiridate(IV) in Aqueous Solutions, ACS Omega, American Chemical Society, 4, 2463-2471, January, 2019
4 - Hassan, R.M.; Ibrahim, S.M., Kinetics and mechanism of permanganate oxidation of ADA in aqueous perchlorate solutions. , Current Organocatalysis , Bentham Science, 6, 52-60, March, 2019
5 - Hassan, R.M.; Ibrahim, S.M., Orientation on electron-transfer nature for oxidation of water-soluble carbohydrates: Kinetics and mechanism of hexachloroiridate(IV) oxidation of methyl cellulose in aqueous perchlorate solutions. , Trends Journal of Science Research , 4, 68-79, February, 2019
6 - Refat Hassan, Samia Ibrahim, A promising methyl ester of pectic acid polysaccharide in biomedicine and pharmaceutics applications: Oxidation of methyl ester of pectic acid by alkaline hexacyanoferrate(III). A kinetic and mechanistic orientation, International Journal of Chemical Kinetics, Wiley, 1-13, DOI: 10.1002/kin.21271, March, 2019
7 - Refat Hassan, Samia Ibrahim, Reduction of tellurium (IV) by ascorbic acid in acid perchlorate solutions. A kinetic and mechanistics approach on the nature of electron-transfer process, Inorganic Chemistry Communications, Elsevier, 104, 178-185, April, 2019
8 - Refat Hassan, Samia Ibrahim, Kinetics of hexachloroiridiate(IV) oxidation of folic acid. , Trends in Organic Chemistry , 19, 113-121, April, 2019
9 - Refat M.Hassan, Kinetics and mechanistics of reaction between silver (I) and hexachloroiridate(IV) in aqueous acidic media: Evidences of formation of binuclear intermediate complex and Ir(0) nanoparticles with orientation on electron-transfer process, Journal of Molecular Liquids, Vol. 283, PP. 302-311, 2019
10 - R. M. Hassan· S. M. Ibrahim· S. A. Salman· H. D. Takagi, A Promising Water‑Soluble Synthetic Polymer of High Efciency and Low Cost as Inhibitor for Inhibition of Metals Corrosion: Inhibitio, Journal of Bio- and Tribo-Corrosion , Springer, 5: 101, 1-10, October, 2019
11 - R. M. Hassan · S. M. Ibrahim · S. A. Salman · H. D. Takagi, A Promising Water‑Soluble Synthetic Polymer of High Efciency and Low Cost as Inhibitor for Inhibition of Metals Corrosion: Inhibition of Magnesium Corrosion by Poly (Ethylene Glycol) in Acidic Media, Journal of Bio- and Tribo-Corrosion, Springer, 5: 101, 1-10, October, 2019
12 - Refat M. Hassana,⁎, Samia M. Ibrahimb, Hideo D. Takagic, Suzan A. Sayeda, Kinetics of corrosion inhibition of aluminum in acidic media by watersoluble natural polymeric chondroitin-4-sulfate as anionic polyelectrolyte inhibitor, Carbohydrate Polymers , Vol. 192, pp. 356–363, 2018
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13 - Refat M. Hassan1 · Samia M. Ibrahim2 · Khalid S. Khairou3, Kinetics and mechanism of oxidation of pyruvate by permanganate ion in aqueous perchlorate solution, Transition Metal Chemistry, 2018
14 - Refat Hassan, Samia Ibrahim, Suzan Sayed, Kinetics and mechanistic aspects on electron‐transfer process for permanganate oxidation of poly(ethylene glycol) in aqueous acidic solutions in the presence and absence of Ru(III) catalyst., International Journal of Chemical Kinetics, Wiley, 1-9, 2018
15 - Samia M. Ibrahim a, Ismail Althagafi b, Hideo D. Takagi c, Refat M. Hassan d,⁎, Kinetics and mechanism of oxidation of chondroitin-4-sulfate polysaccharide as a sulfated polysaccharide by hexacyanoferrate(III) in alkaline solutions with synthesis of novel coordination biopolymer chelating agent, Journal of Molecular Liquids , Vol. 244, pp. 353–359, 2017
16 - Refat M. Hassan (El-Moushy), Kinetic and Mechanistic Orientation to the Nature of Electron Transfer Process in Oxidation of Biodegradable Water-Soluble Polymers by Chromic Acid in Aqueous Perchlorate Solutions: A Linear Free-Energy Correlation, SUSTAINABLE POLYMERS , pp. 43, 2016
17 - Refat M. Hassan (El-Moushy) , OXIDATION OF SOME SULPHATED MACROMOLECULES USING VARIOUS OXIDIZING AGENTS: FOCUSING ON THE NATURE OF ELECTRONTRANSFER PROCESS AND OXIDATION MECHANISTICS WITH SYNTHESIS OF COORDINATION BIOPOLYMER OXIDATION PRECURSORS AS NOVEL CHELATING AGENTS , CHEMISTRY RESEARCH, pp. 70, 2016
18 - • Hassan, R.M., Ibrahim, S.M. & Zaafarany, I.A., Simultaneous Purification and Desalination of Water using Biodegradable Natural Polymers: A Kinetic Study of Reduction of Toxic Soluble Carcinogen Chromium (VI) to Removable Insoluble Chromium (III) Complexes with formation of Coordination Biopolymer Prec, International Journal of Innovative Research in Science, Engineering and Technology , 5, 15522-15536, 2016
19 - • Hassan, R.M.; Ibrahim, S.M. & Zaafarany, I.A. , Simultaneous Purification and Desalination of Water using Biodegradable Natural Polymers: A Kinetic Study of Reduction of Toxic Soluble Carcinogen Chromium (VI) to Removable Insoluble Chromium (III) Complexes with formation of Coordination Biopolymer Prec, International Journal of Innovative Research in Science, Engineering and Technology, 5, 15522-15536, 2016
20 - R.M. Hassana,∗, I.A. Zaafaranyb, A.A. Gobouric, Base-catalyzed oxidation of some anionic polyelectrolytes: Kineticand mechanistic aspects to electron-transfer process intohexacyanoferrate(III) oxidation of alginate polysaccharide inalkaline media, Journal of Molecular Catalysis A: Chemical, Vol. 386, pp. 28–34, 2014
21 - A. Yamada, Y. Watanabe, K. Noda, S. Itoh, K. Ishihara, M. Inamo, R. M. Hassan and H. D. Takagi, Reduction Reaction of the Copper(II) Complex Bearing 1,3-Di(Pyridine-2-carboxaldimino)propane (pitn) by Decamethylferrocene in Acetonitrile, Journal of Solution Chemistry , Springer Link, 43, 1479 , DOI 10.1007/s 10953-014-0154-7, April, 2014
22 - T. Mabe, H. Yamaguchi, M. Fujiki, K. Noda, K. Ishihara, M. Inamo, R.M. Hassan, S. Iwatsuki, T. Suzuki and H.D. Takagi, Syntheses, Crystal Structures and Ligand Field Properties of Iron(II) Complexes with PNP Ligands:Origin of Large Ligand Field by a Phosphorous Donor Atom, Journal of Solution Chemistry , Springer Link, 43, 1587 , DOI 10.1007/s 10953-014-0182-3 , June, 2014
23 - Refat M. Hassan , Ishaq A. Zaafarany,Fahd A. Tirkistani, Ahmed Fawzy, Hideo D. Takagi, Kinetics and Mechanistic Approach into Electron-Transfer of Permanganate Oxidation of Silver (I) in Aqueous Perchlorate Solutions, Res. Appli. Inorg. Chem. , 1, 1, 2014
24 - Refat M. Hassan, Ishaq A. Zaafarany, Fahd A. Tirkistani, Basim H. Ashgar, Hideo D. Takagi , 5) Physicochemical Studies on Some Coordination Biopolymeric Thorium (IV)-Complexes: Kinetics and Mechanism of Non-Isothermal Decomposition of Cross-Linked Thorium (IV)-Alginate Complex with Correlation between Coordination Geometry and Thermal Stability, Current Advan. Chem. Res., 2014
25 - Refat M. Hassan, Fahd A. Tirkistani, Ishaq A. Zaafarany, Basim H. Asghar, Hideo D.Takagi, , 6) Oxidation of Some Anionic Polyelectrolytes. Kinetics and Mechanisms of Oxidation of Carboxymethyl Cellulose Polysaccharide by Cerium (IV) in Aqueous Perchlorate Solutions, Current Advan. Chem. Res., 2014
26 - Refat Hassana, Samia Ibrahim, Abdel Rahman Dahy, Ishaq Zaafarany, Fahd Tirkistani b, Hideo Takagi, Kinetics and mechanism of oxidation of chondroitin-4-sulfate polysaccharide by chromic acid in aqueous perchlorate solutions, Carbohydrate Polymers, Vol.92, PP.2321– 2326, January, 2013
27 - Refat M. Hassan and Ishaq A. Zaafarany, Kinetics of Corrosion Inhibition of Aluminum in Acidic Media by Water-Soluble Natural Polymeric Pectates as Anionic Polyelectrolyte Inhibitors, Materials, Vol.6, PP.2436-2451, 2013
28 - R. M. Hassan, A Mechanistic Approach to the Kinetics of Electron-Transfer Reactions in Oxidation of Water-Soluble Macromolecules in Particularly Carbohydrates by Alkaline Permanganate with Spectrophotometric Detection of Blue Hypomanganate (V) and Green Manganate (VI) , Transworld Research Network , Vol. 3, 27, 2013
29 - Refat Hassan,*a Ishaq Zaafarany,b Hideo Takagic and Yasuhisa Ikedad, Kinetics and mechanism of hexachloroiridate(IV) oxidation of tellurium(IV) in aqueous solutions, View Article Online View Journal, April, 2013
30 - Refat Hassan,*,† Ishaq Zaafarany,‡ and Hideo Takagi§, Oxidation of Some Water-Soluble Anionic Polyelectrolytes. Oxidation of Carboxymethyl Cellulose Polysaccharide by Hexacholroiridate(IV) in Aqueous Percholorate Solutions. A Kinetic and Mechanistic Approach to Electron-Transfer Process, Ind. Eng. Chem. Res., Vol. 52No. 4, pp. 1531–1537, 2013
31 - Refat M. Hassan, A Mechanistic Approach to the Kinetics of Electron-Transfer Reactions in Oxidation of Water-Soluble Macromolecules in Particularly Carbohydrates by Alkaline Permanganate with Spectrophotometric Detection of Blue Hypomanganate (V) and Green Manganate (VI) , 7) Recent Development in Carbohydrate Research, by S.G. Pandalai, Vol. 3 , Transworld Research Network, 3, 27, 2013
32 - Refat M. Hassan , I. A. Zaafarany, H. I. Takagi and Y. Ikeda , 8) Kinetics and Mechanism of Hexachloroiridate(IV) Oxidation of Tellurium(IV) in Aqueous Solutions, New J. Chem., 37, 2700, 2013
33 - R.M.Hassan, S.M.Ibrahim, A. A. Dahy, I.A. Zaafarany, F.Tirkistani, H. D. Takagi , Kinetics and mechanism of oxidation of chondroitin-4-sulfate polysaccharide by chromic acid in aqueous perchlorate solutions. , Carbohydrate Polymers , Elsevier, 92, 2321-2326, 2013
34 - Refat Hassan, Abdel Rahman Dahy, Samia Ibrahim, Ishaq Zaafarany, and Ahmed Fawzy, Oxidation of Some Macromolecules. Kinetics and Mechanism of Oxidation of Methyl Cellulose Polysaccharide by Permanganate Ion in Acid Perchlorate Solutions, Industrial & Engineering Chemistry Research , Vol.51, PP.5424-5432, March, 2012
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35 - R.M. Hassan, A. Fawzy, A. Alarifi, G.A. Ahmed, I.A. Zaafarany, H.D. Takagi, Base-catalyzed oxidation of some sulfated macromolecules: Kinetics and mechanism of formation of intermediate complexes of short-lived manganate (VI) and/or hypomanganate (V) during oxidation of iota- and lambda-carrageenan polysaccharides by alkaline per, Molecular Catalysis A: Chemical, PP. 38–45, 2011
36 - R.M. Hassan, S.M. Ibrahim, I.A. Zaafarany, A. Fawzy, H.D. Takagi, Base-catalyzed oxidation: Kinetics and mechanism of hexacyanoferrate (III) oxidation of methyl cellulose polysaccharide in alkaline solutions, Journal of Molecular Catalysis A: Chemical, Vol. 344, PP.93-98, June, 2011
37 - Refat M. Hassan, A Mechanistic Approach to the Kinetics of Oxidation of Uranium(IV) by Hexachloroplatinate(IV) in Aqueous Perchlorate Solutions. Evidence of the Formation of a Binuclear Intermediate Complex, The Journal of Physical Chemistry A, Vol.115, PP. 133338-13345, September, 2011
38 - Refat M. Hassan , Ahmed Fawzy , Gamal A. Ahmed , Ishaq A. Zaafarany , Basim H. Asghar , Hideo D. Takagi , Yasuhisa Ikeda, Kinetics and mechanism of permanganate oxidation of iota- and lambda-carrageenan polysaccharides as sulfated carbohydrates in acid perchlorate solutions, Carbohydrate Research, Vol.346, PP.2260-2267, November, 2011
39 - R.M.Hassan,S.M.Ibrahim,I. A. Zaafarany, A.Fawzy, H. D. Takagi , Base-catalyzed oxidation: Kinetics and mechanism of hexacyanoferrate (III) oxidation of methyl cellulose polysaccharide in alkaline solutions. , Journal of Molecular Catalysis A: Chemical , Elsevier, 344, 93-98, 2011
40 - Refat M. Hassan , Saddek M. Ahmed , Ahmed Fawzy , Doaa A. Abdel-Kader , Yasuhisa Ikeda , Hideo D. Takagi, Acid-catalyzed oxidation of carboxymethyl cellulose polysaccharide by chromic acid in aqueous perchlorate solutions, Catalysis Communications , Elsevier, uk, Vol. 11, No. 1, pp. 611-615 , March, 2010
41 - Ishaq A. Zaafarany , Abd Alla S. N. AlArifi , Ahmed Fawzy , Gamal A. Ahmed , Said. A. Ibrahim , Refat. M. Hassan , Hideo D. Takagi, Further evidence for detection of short-lived transient hypomanganate(V) and manganate(VI) intermediates during oxidation of some sulfated polysaccharides by alkaline permanganate using conventional spectrophotometric techniques, Carbohydrate Research, ELsevier, Vol. 345, No.201, PP. 1588-1593, 2010
42 - R.M. Hassan, A. Alaraifi, A. Fawzy, I.A. Zaafarany, K.S. Khairou, Y. Ikeda, H.D. Takagi, Acid-catalyzed oxidation of some sulfated polysaccharides Kinetics and mechanism of oxidation of kappa-carrageenan by cerium (IV) in aqueous perchlorate solutions, Molecular Catalysis A: Chemical, PP. 138–144, 2010
43 - R. M. Hassan, D. A. Abdel-Kader, S. M. Ahmed, A. Fawzy, I. A. Zaafarany, B. H. Asghar, H. D. Takagi, Acid-catalyzed oxidation of carboxymethyl cellulose. Kinetics and mechanism of permanganate oxidation of carboxymethyl cellulose in acid perchlorate solutions, Cat. Commun., pp. 184-190, 2009
44 - I. A. Zaafarany, K. S. Khairou and R. M. Hassan,, Physicochemical Studies on Cross-Linked Thorium(IV)-Alginate Complex Especially the Electrical Conductivity and Chemical Equilibrium Related to the Coordination Geometry, Arab. Saudi , vol. 2 No1., 2009
45 - I. A. Zaafarany, K. S. Khairou, R. M. Hassan and Y. Ikeda, , Physicochemical Studies on Some Natural Polymeric Complexes of Quadrivalent Metal Cations. Electrical Conductivity and Chemical Equilibrium of Cross-Linked Selenium(IV)-Alginate Complex With Correlation Between the Complex Stability and Geometrical , Saudi. Chem. Soc., vol. 13 No 49, 2009
46 - I. A. Zaafarany, K. S. Khairou and R. M. Hassan, Acid-catalysis of chromic acid oxidation of kappa-carrageenan polysaccharide in aqueous perchlorate solutions,, . Mol. Catal, vol. 302, No 112, 2009
47 - R. M. Hassan, A. Fawzy, G.A. Ahmed, I.A. Zaafarany, B.S. Asghar, K.S. Khairou,, Acid-Catalyzed Oxidation of Some Sulfated Macromolecules. Kinetics and Mechanism of permanganate Oxidation of kappa-carrageenan Polysaccharides in Acid Perchlorate Solutions. , Mol. Cat. , Vol 309, pp .95-102 ., 2009
48 - Refat M. Hassan a,*, Doaa A. Abdel-Kader a, Saddek M. Ahmed a, Ahmed Fawzy a, Ishaq A. Zaafarany b, Basim H. Asghar b, Hideo D. Takagi c, Acid-catalyzed oxidation of carboxymethyl cellulose. Kinetics and mechanism of permanganate oxidation of carboxymethyl cellulose in acid perchlorate solutions, Catalysis Communications , Elsevier, uk, 11 (2009) 184–190, 7, 2009
49 - G. A. Ahmed, A. Fawzy and R. M. Hassan,, Spectrophotometric Evidence for the Formation of Short-Lived Hypomanganate(V) and Manganate(VI) Transient Species during the Oxidation of K-carrageenan by Alkaline Permanganate., Carbohydr. Res., vol. 342,No.1382 , 2007
50 - K. S. Khairou, W. M. Al-Gethami and R. M. Hassan, Diffusion Controls Influence on Relaxation Time and Velocity of Acceleration of Sol-Gel Transformation for Cross-Linked Metal Alginate Ionotropic Gel Complexes., Bull. Polish Acad. Sci., vol. 51, No 461, 2003
51 - G. A. Ahmed, K. S. Khairou and R. M. Hassan, Kinetics and Mechanism of Oxidation of Chitosan Polysaccharide by Permanganate Ion in Aqueous Perchlorate Solutions., Chem. Res, Vol 183, 2003
52 - M. I. Abdel-Hamid, K. S. Khairou and R. M. Hassan, , Kinetics and Mechanism of Permanganate Oxidation of Pectin in Acid Perchlorate Media, Eur. Polym, vol. 39, No .381, 2003
53 - M. A. El-Gahami, K. S. Khairou and R. M. Hassan,, Thermal Decomposition of Sn(II), Pb(II), Cd(II) and Hg(II) Cross-Linked Metal-Alginate complexes, , Bull. Polym. Acad. Sci, vol. 51, No 105, 2003
54 - M. I. Abdel-Hamid, K. S. Khairou and R. M. Hassan, Kinetics and mechanism of permanganate oxidation of pectin polysaccharide in acid perchlorate media, European Polymer Journal, Volume 39, Issue 2, Pages 381-387, February, 2003
55 - K. S. Khairou, R. M. Hassan and A. M. Shaker, Novel Synthesis of Diketocarboxymethyl Cellulose as Biopolymer Precursors, Appl. Polym. Sci., vol. 85, No 1019, 2002
56 - K. S. Khairou and R. M. Hassan, Temperature-Dependence of Electrical Conductivity for Cross-Linked Mono- and Divalent Metal Alginate Complexes., High Perform. Polym, vol. 14, No 93 , 2002
57 - . K. S. Khairou, W. M. Al-Gethami and R. M. Hassan, Kinetics and Mechanism of Sol-Gel Transformation between Sodium Alginate Polyelectrolyte and Some Heavy Divalent Metal Ions with Formation of Capillary Structure Polymembrane Ionotropic Gels, Memb. Sci., vol. 14, No 93 , 2002
58 - K. S. Khairou, W. M. Al-Gethami and R. M. Hassan,, Kinetics and Mechanism of Sol-Gel Transformation on Polyelectrolyte of Divalent Metal Ions Alginate Complexes with Formation of Capillary Ionotropic Polymembrane., Bull. Polish Acad. Sci, vol. 50 No 3, 2002
59 - G. A. Ahmed and R. M. Hassan, ) Kinetics and Mechanism of Reduction of Hexachloroiridate(IV) by Kojic acid in Aqueous Perchlorate Solutions., Bull. Polish Acad. Sci, vol. 49, No 235, 2001
60 - M. I. Abdel-Hamid, G. A. Ahmad and R. M. Hassan, Kinetics and Mechanism of Oxidation of Poly(Vinyl Alcohol) Macromolecule by Chromic Acid in Aqueous Perchloric Acid, Eur. Polym, vol. 37 No, 2201 , 2001
61 - M. I. Abdel-Hamid, G. A. -W. Ahmed and R. M. Hassan, Kinetics and mechanism of oxidation of poly(vinyl alcohol) macromolecule by hromic acid in aqueous perchloric acid, , , European Polymer Journal, Volume 37, Issue 11, Pages 2201-2206, November, 2001
62 - K. S. Khairou, R. M. Hassan, Pectate Polyelectrolyte Ionotropic Gels. I. Kinetics and Mechanism of Formation of Manganate(VI)-Pectate Intermediate Complex during Oxidation of Pectate Polysaccharide by Alkaline Permanganate, Eur. Polym, vol. 36 No. 2021 , 2000
63 - S. El-Azhary and R. M. Hassan, Spectrophotometric Detection of Short-lived Manganate(VI) Intermediate through Oxidation of Some Natural and Synthetic Polymers by Alkaline Permanganate, Spectr. Lett, 1999
64 - A. Hassan, N. Abo El-Maali, R. M. Hassan and R. M. Mahfouz,, Application of Chromatographic Techniques in the Preparation of Phosphoric Acid from Super-phosphate Fertilizer as Phosphate Ions Source., Saudi Chem. Soc, vol. 3, No.1, 1999
65 - M. A. El-Korashy and R. M. Hassan, Kinetics and Mechanism of Oxidation of ADA by Hexachloroiridate (IV) in Aqueous Perchloric Acid., Polish Acad. Sci, vol. 46, No.147, 1998
66 - S. M. Abd El-Wahab, M. A. Ahmed, F. A. Radwan, R. M. Hassan and A. M. El-Refae,, Relative Permittivity and Electrical Conductivity of Some Divalent Metal Alginate Complexes, Mater. Letters, vol. 20, No .183 , 1997
67 - M. A. Ahmed, A. M. El-Refae, F. A. Radwan, S. M. Abd El-Wahab and R. M. Hassan, Temperature and Frequency Dependence of the Electrical Properties of Metal Alginate Complexes., Ind. J. Chem., vol. 71 , No 395 , 1997
68 - R. M. Hassan, Alginate Polyelectrolyte Ionotropic Gels. XI. Swelling and Shrinking Behaviour of Capillary Metal Alginate Ionotropic Gel Complexes during Aging and Drying processes, The First International Conference on Basic Sciences & Advanced Technology, p. 64., 1996
69 - M. A. El-Korashy and R. M. Hassan, , Alginate Polyelectrolyte Ionotropic Gels. IV. Heterogeneous Chemical Equilibria Studies in Determination of Reactivity of Divalent Transition Metals in Alginate Complexes by Hydrogen Exchange Reactions., Conference on Science Role for the Development of Egyptian Society and Environments,, 1996
70 - S. A. El-Shatoury, R. M. Hassan, and H. A. Azab, Preparation and Characterization of New 99Tc and Re-Complexes in Colloidal state., Spectr. Lett, vol. 28, No 665, 1995
71 - . R. M. Hassan, S. A. El-Shatoury and H. A. Azab, Alginate Polyelectrolyte Ionotropic Gels. XVII. Influence of Diffusion Controls on Relaxation Time of Gelation between Alginate Polyelectrolyte and Polyvalent Metal Ions, ASW. SC. Tech. Bull., Egypt, vol. 16 No 62, 1995
72 - R. M. Hassan, S. A. El-Shatoury, M. A. Osman and A. El-Korashy, Alginate Polyelectrolyte Ionotropic Gels. VIII. Electrical Properties of Di- and Trivalent Metal Alginate Complexes Specially Iron(IIl) and Chromium(IIl) Alginate Resins, Bull. Fac. Sci., Assiut Univ., Egypt, vol. 24 No 141, 1995
73 - R. M. Hassan, A. Awad and A. M. Shaker, Alginate Polyelectrolyte Ionotropic Gels. XX. Mathematical Approaches for Accounting the Physical Changes of Ionotropic Alginate Gel Complexes of Divalent Transition Metal Ions during Sol-Gel Transformation. , Bull. Fac. Sci., Assiut Univ., Egypt, vol. 24 No15, 1995
74 - S. A. El-Shatory, R. M. Mohfouz and R. M. Hassan,, Alginate Polyelectrolyte Ionotropic Gels. X. Reaction of Ketoalginate with Polyvalent Metal Ions with Special Evidence on the Nature of Chelation., ASW. SC. & Tech. Bull., Egypt, vol. 16 No 51, 1995
75 - R. M. Hassan, A. Awad and A. M. Shaker,, Alginate Polyelectrolyte Ionotropic Gels. V. Equilibrium and Kinetic studies on Exchange of Monovalent Metal Ions by Hydrogen Ions Especially Silver(I) in Silver Alginate Complexes, Bull. Fac. Sci., Assiut Univ., Egypt,, vol. 24 No. 27, 1995
76 - S. A. El-Shatoury, M. H. Wahdan and R. M. Hassan, Polarographic Behaviour and Determination of Dichromate Ions in Absence and Presence of Cadmium(II) in Their Buffer Solutions, . Ind. Chem. Soc, vol. 72, No 853, 1995
77 - R. M. Mahfouz, A. S. El-Shehawy, S. A. El-Shatoury and R. M. Hassan,, Oxotechnetium and Oxorhenium Complexes of N-Acetyl-Anthranilic Acids., Technetium Conference, Italy & Spect. Lett, vol. 28 No. 127, 1995
78 - A. A. Said, M. M. Abd El-Wahab and R. M. Hassan, Thermal and Electrical Studies on Some Metal Alginate Compounds., Therm. Chem. Acta, vol. 233, No 13 , 1994
79 - Y. Ideda, R. M. Hassan, M. M. Abd El-Fattah, Y. Y. Park and H. Tomiyasu, Kinetics and Mechanism of Ligand Substitution Reactions in Triglycinatovanadium(III) in Aqueous Solutions, Collect. Czech. Chem. Commun., vol. 59, No. 1077, 1994
80 - R. M. Hassan, S. El-Gaiar and A. M. El-Summan,, New Coordination Polymers. IV. Oxidation of Poly (Vinyl Alcohol) by Permanganate Ion in Alkaline Solutions. Kinetics and Mechanism of Decomposition of Intermediate Complex., Polym. Int, vol. 32 No. 39, 1993
81 - R. M. Hassan, Alginate Polyelectrolyte Ionotropic Gels. XVIII. Oxidation of Alginate Polysaccharide by Potassium Permanganate in Alkaline Solutions. Kinetics of Decomposition of the Intermediate Complex. , , J. Polym. Sci, vol. 31, No.1147, 1993
82 - A. A. Said and R. M. Hassan, , Thermal Decomposition of Some Divalent Metal Alginate Gel Compounds., J. Polym. Degrad. Stabil, vol. 39 No. 393, 1993
83 - R. M. Hassan, S. A. El-Gaiar and Abd El-Hady M. El-Summan, Kinetics of Oxidation of Selenium(IV) by Permanganate Ion in Perchlorate Solutions., Collect. Czech. Chem. Commun., vol. 58 No. 538, 1993
84 - R. M. Hassan, Alginate Polyelectrolyte Ionotropic Gels. XIII. Geometrical Aspects for Chelation in Metal Alginate Complexes Related to their Physicochemical Properties., Polym. Inter, vol. 31 No. 81, 1993
85 - R. M. Hassan, M. A. Abd-Alla and M. F. El-Zohary., Alginate Polyelectrolyte Ionotropic Gels. VI. Novel Synthesis of Diketoalginate as Bipolymer Precursor, J. Appl. Polym. Sci, vol. 47, No. 1649 , 1993
86 - R. M. Hassan, New Coordination Polymers. III. Oxidation of Poly (Vinyl Alcohol) by Permanganate Ion in Alkaline Solutions. Kinetics and Mechanism of Formation of an Intermediate Complex with a Spectrophotometric Detection of Manganate(VI) Transient Species, Polym. Inter , vol. 30, No. 5, 1993
87 - R. M. Hassan, Alginate Polyelectrolyte Ionotropic Gels. XIV. Kinetics and Mechanism of Formation of Intermediate Complex During the Oxidation of Alginate Polysaccharide by Alkaline Permanganate with a Spectrophotometric Evidence of Manganate(VI) Transient Species. , J. Polym. Sci, vol. 31 No. 51, 1993
88 - . R. M. Hassan, Y. Ikeda and H. Tomiyasu, Alginate Polyelectrolyte Ionotropic Gels. XV. Physicochemical Properties of Uranyl Alginate Complex Especially the Chemical Equilibrium and Electrical Conductivity Related to the Coordination Geometry, J. Mater. Sci., vol. 28 No. 5143 , 1993
89 - R. M. Hassan,, Alginate Polyelectrolyte Ionotropic Gels. II. Kinetics and Mechanism of Exchange of Chelated Nickel(II) by Hydrogen Ions In Capillary Ionotropic Nickel Alginate Polymembrane Gel Complex, J.Mater. Sci, vol. 28, No. 384, 1993
90 - T. Farid, A. A. El-Beilihi, Z. A. Omran and R. M. Hassan,, Kinetics of Isothermal Decomposition of γ-Irradiated and Unirradiated Co(II) Succinato Complex. , J. Therm. Anal., vol. 38, No. 2377 , 1992
91 - R. M. Hassan, S. A. E1-Shatoury and A. A. Said., Alginate Polyelectrolyte Ionotropic Gels. XVI. Kinetics and Chemical Equilibria Studies for Heterogeneous Ion Exchange of Polyvalent Metal Ions in Alginate Gel Complexes, High Perform. Polym, vol. 4 No. 173, 1992
92 - M. Th. Makhiouf, S. A. El-Shatoury and R. M. Hassan,, Alginate Polyelectrolyte Ionotropic Gels. XIX. Spectrophotometric Detection of Short-Lived Intermediate in Alkaline Permanganate Oxidation of Alginate Polysaccharide., High Perform. Polym, vol. 4 No, 87 , 1992
93 - R. M. Hassan S. A. El-Shatoury and M.Th. Makhlouf,, Alginate Polyelectrolyte Ionotropic Gels. XII. Chromatographic Separation of Metal Ions in Mixture Solutions., High Perform. Polym, vol. 4 No. 49, 1992
94 - R. M. Hassan,, Kinetics and Mechanism of Oxidation of Kojic Acid by Permanganate Ion in Perchlorate Media., Acta Chimi. Hungarica, vol. 129 No. 661, 1992
95 - R. M. Hassan, S. A. El-Shatoury and M. Th. Makhlouf., Alginate Polyelectrolyte Ionotropic Gels. IX. Diffusion Control Effects on the Relaxation Time of Sol-Gel Transformation of Divalent Metal Alginate Ionotropic Gel Complexes., Coll. Polym. Sci, vol. 12 No. 1237 , 1992
96 - R. M. Hassan,, Kinetics and Mechanism of Hexachloroiridate(IV) Oxidation of Arsenic(III) in Acidic Perchlorate Solutions. , Collect. Czech. Chem. Commun, vol. 57, No.1451 , 1992
97 - R. M. Hassan, T. Farid and A. A. El-Bellihi, Kinetics of Thermal Decomposition of γ-Irradiated and Unirradiated of Some Complexes of Mandelhydroxamic Acid, J. Radioanal. Nucl. Chem., Lett, vol. 165 No. 277, 1992
98 - R. M. Hassan, M. A. El-Gahami and M. A. Abd-Alla,, New Coordination Polymers. II. Coordination of Poly (Vinyl Alcohol) with Divalent Metal Ions., , J. Mater. Chem., vol. 2, No. 613, 1992
99 - R. M. Hassan and M. A. Abd-Alla, New Coordination Polymers. I. Novel Synthesis of Poly (Vinyl Alcohol) and Characterization as Chelating Agent, J. Mater. Chem, vol. 2 No. 609, 1992
100 - R. M. Hassan, Kinetics and Mechanism of Oxidation of Tin(II) by Hexachloroiridate(IV) in Aqueous Perchlorate Solutions, Collect. Czech. Chem. Commun, vol. 57 No. 326, 1992
101 - R. M. Hassan, , A Review on Oxidation of Uranium(IV) by Polyvalent Metal Ions. A Linear Free-Energy Correlation., J. Coord. Chem., B. Rev., vol. 27 No. 255 , 1992
102 - R. M. Hassan,, Alginate Polyelectrolyte Ionotropic Gels. II. Kinetics and Mechanism of Exchange of Chelated Nickel(II) by Hydrogen Ions In Capillary Ionotropic Nickel Alginate Polymembrane Gel Complex, 1st Arab International Conference on Polymers & Their Application, Mansura, Egypt,, Vol 338, 1991
103 - R. M. Hassan,, Alginate Polyelectrolyte Ionotropic Gels. VII. Physicochemical Studies on Silver(I) Alginate Complex with Special Correlation to the Electrical Properties and Geometrical Structure., Coll. Surf, vol. 60 No. 203, 1991
104 - M. K. Hassan R. M. Hassan and M. A. Abd-Alla, , Synthesis and Characterization of High-Spin Iron(III)-Sulpha Drugs Complexes and their Biological Activity., Monatshefte fur Chemie, vol. 122 No. 829 , 1991
105 - R. M. Hassan, , Alginate Polyelectrolyte Ionotropic Gels. III. Kinetics of Exchange of Chelated Divalent Transition Metal Ions Especially Cobalt(II) and Copper(II) by Hydrogen Ions in Capillary Ionotropic Metal Alginate Polymembrane Gels., J. Mater. Sci, vol. 26 No. 5806 , 1991
106 - R. M. Hassan and M. A. Abd-Alla, Alginate Polyelectrolyte Ionotropic Gels. I. Potentiometric Determination of the Ionization Constant of Alginic Acid Polyelectrolyte in Relation to Sol-Gel Transformation Mechanistics, Acta Polym, vol. 42 No. 447 , 1991
107 - R. M. Hassan, Kinetics of Reaction of Uranium(IV) and Hexachloroiridate(IV) in Acid Perchlorate Solutions., J. Chem. Soc., Dalton Trans., , Vol. 3003, 1991
108 - R. M. Hassan, Kinetics and Mechanism of Oxidation of DL-α-Alanine by Permanganate Ion in Acid Perchlorate Media., Can. J. Chem., vol. 69 No. 2018, 1991
109 - R. M. Hassan, A. Awad and A. Hassan, Separation of Metal Alginate Ionotropic Gels to Polymembranes with Special Evidence on the Position of Chelation in Copper Alginate Complex., J. Polym. Sci, vol. 29 No. 1645, 1991
110 - . R. M. Hassan, Kinetics and Mechanism of Selenium(IV) Oxidation of Ascorbic Acid in Aqueous Perchlorate Solutions, Croat. Chem. Acta, vol. 64 No, 229, 1991
111 - M. K. Hassan, M. A. Abd-Alla and R. M. Hassan, , New Coordination Polymers of l,4-bis(2-Hydroxyphenyl azomethane)-phynylene., J. Macromol. Sci, Vol , 1501 , 1990
112 - N. Abo El-Maaly and R. M. Hassan, Electrooxidation and Determination of Anti-Inflammatory Drugs Piroxicam and Tenoxicam at Carbon Paste Electrode. , J. Electroanal. Chem, vol. 24 No , 155 , 1990
113 - R. M. Hassan,, Influence of Frequency on Electrical Properties of Acid and Trivalent Metal Alginate Ionotropic Gels. A Correlation between Strength of Chelation and Stability of Polye1ectrolyre Gels., High Perform. Polym., vol. 1 No, 275 , 1989
114 - R .M. Hassan, M. Th. Makhlouf, A. M. Summan and A. Awad, Influence of Frequency on Specific Conductance of Polyelectrolyte Gels with Special Correlation Between Strength of Chelation and Stability of Divalent Metal Alginate Ionotropic Gels, Eur. Polym. J, vol. 25 No, 996 , 1989
115 - R. M. Hassan, A. M. Summan, M. K. Hassan and S. A. El-Shatoury, Kinetics and Mechanism of Sol-Gel Transformation of Polyelectrolytes of Some Transition Metal Ions Especially Cobalt Alginate Ionotropic Membranes., Eur. Polym. J, vol. 25 No, 1209 , 1989
116 - M. A. Ghandour, R. M. Hassan, S. A. Ibrahim and N. Abo El-Maali,, Polarographic Determination of Formation Constants of the Mixed Complexes of Cd(II) and Pb(II) with Thiosulphate and Halide Ions., J. Chin. Chem. Soc., Taipei, vol. 36 No, 293, 1989
117 - M.A. Ghandour, R.M. Hassan, S.A. Ibrahim and N. Abo-Elmaali, Polarographic Determination of the Formation Constants of Mixed Ligand Complexes of Cd(II) and Pb(II) with Thiosulphate and Chloride Ions ., J.Chin. Chem. Soc. , Vol , 36, 1989
118 - R. M. Hassan, S. A. El-Shatoury, M. A. Mousa and A. Hassan, Kinetics and Mechanism of Sol-Gel Transformation for Polyelectrolytes of Capillary Copper Alginate Ionotropic Membranes, Eur. Polym. J., vol. 24 No, 1173 , 1988
119 - M. A. Mousa and R. M. Hassan, Solvent Effects on Kinetics of the Hydrolysis of Benzenesulfonyl Chloride., Orient. J. Chem., Ind, vol. 4 No, 17, 1988
120 - R. M. Hassan, M. A. Mousa and M. H. Wahdan,, Kinetics and Mechanism of Oxidation of p-Phenylalanine by Permanganate Ion in Aqueous Perchloric Acid, , J. Chem. Soc., Dalton Trans, Vol 605, 1988
121 - R. M. Hassan, M. H. Wahdan and A. Hassan, , Kinetics and Mechanism of Sol-Gel Transformation on Poly-electrolytes of Nickel Alginate Ionotropic Membranes., Eur. Polym. J, vol. 24 No, 281 , 1988
122 - R. M. Hassan, M. A. Mousa and S. A. El-Shatoury,, Kinetics of the Oxidation of Uranium(IV) by Permanganate Ion in Aqueous Perchlorate Media., J. Chem. Soc., Dalton Trans, Vol 601, 1988
123 - M. M. Girgis, R. M. Hassan and A. S. El-Shehawy, Kinetics and Mechanism of Oxidation of DL-α-Alanine by Potassium Permanganate in Sulphuric Acid Medium, Bull. Fac. Sci., Assiut Univ, vol. 16 No, 41, 1987
124 - M. M. Girgis, R. M. Hassan and Z. H. Khalil, Kinetics and Mechanism of Reduction of 4-(p-Dimethylamino)-Benzylidene-3-methyl-1-phenyl-2-pyrazolin-5-one by Bisulphite Ions in Aqueous Ethanolic Media, Ind. J. Tech, vol. 25 No, 334 , 1987
125 - . R. M. Hassan and M. M. Girgis,, Kinetics and Mechanism of Reduction of 4-(p-Dimethylamino)- phenylimino-3-methyl-1-phenyl-2-pyrazolin-5-one by Bisulphite in Aqueous Ethanolic Media, Ind. J. Chem.,, Vol 936, 1987
126 - H. A. Azab, A. Hassan and R. M. Hassan,, Polarographic and Amperometric Analysis of Selenite and Selenate in Simple or Binary Mixture., Bull. Chem. Soc., France, vol. 1 No, 26 , 1987
127 - M. M. Girgis, R. M. Hassan and Z. H. Khalil, Kinetic Studies on Base-Catalyzed Condensation of Benzaldehyde p-Hydroxybenzaldehyde, p-Dimethylaminobenzaidehyde and N-N-Dimethyl-p-nitroaniline with l-phenyl-3-methyl-2-pyrazolin-5-one, Croatica Chemica Acta, Yogs., vol. 60 No, 215 , 1987
128 - M.M.Girgis, R.M. Hassan and Z.H. Khalil , Kinetic studies on base catalyzed condensation of benzaldehyde, p-hydroxybenzaldehyde, p- dimethylaminobenzaldehyde and N,N-dimethyl-p-nitrosoaniline with 1-phenyl-3-methyl-2-pyrazolin-5-one, Croatica Chemica Acta, 60 (2) , 215-223 , 1987
129 - M.M.Girgis, R.M. Hassan and Z.H. Khalil, Kinetics and Mechanism of Reduction of 4 ( p-Dimethylamino) - benzylidine-3-methyl-1-phenyl-2-pyrazolin-5-one by Bisulphite Ions in Aqueous Ethanolic Media, Indian Journal of Technology , 25 , 334-338 , 1987
130 - M.M. Girgis, R.M. Hassan and A.S.ElShahawy, Kinetics and mechanism of oxidation of DL–α–Alanine by potassium permanganate in sulphuric acid medium, Bull. Fac. Sci., Assiut Univ., 16 (1), 41-54 , 1987
131 - R.M. Hassan and M.M. Girgis, Kinetics and Mechanism of Reduction of 4-(p-Dimethylamino)phenylimino-3-methyl-1-phenyl-2-pyrazolin-5-one by Bisulphite in Aqueous Ethanolic Media, Indian Journal of Chemistry, 26A, 936-939, 1987
132 - H. A. Azab, A. Hassan and R. M. Hassan, Polarographic Behaviour of Selenite Ions in Universal Buffer Solutions., Annali di Chimica,, vol. 76 No, 51 , 1986
133 - H. A. Azab, R. M. Hassan and S. A. Ibrahim, New Metal Ion Buffer for Standardization of Copper Ion Selective Electrode., Annali di Chimica, , vol. 76 No, 221 , 1986
134 - H. A. Azab, R. M. Hassan and S. A. Ibrahim, New Metal Ion Buffer for Standardization of Copper Ion Selective Electrode. , Ann. di. Chim. (Rome), Vol 76, 1986
135 - R. M. Hassan, T. Kojima and H. Fukutomi,, Kinetics of the Oxidation of Uranium(IV) by Hexachloroplatinate(IV) in Aqueous Solution., VI International Symposium on Solute-Solute-Solvent Interactions, Japan,, p. 113, 1982
136 - R. M. Hassan, T. Kojima and H. Fukutomi, Kinetics and Mechanism of the Oxidation of Uranium(IV) by Hexachloroiridate(IV) in Aqueous Acidic Perchlorate Media, Bull. Res. Lab. Nucl. React., Jpn., vol. 6 No 36, 1981
137 - R. M. Hassan, T. Kojima and H. Fukutomi,, A Kinetic Study of the Oxidation of Uranium(IV) by Ferricyanide Ions in Aqueous Solutions., Bull. Res. Lab. Nucl. React., Jpn, vol. 5 No, 41 , 1980
138 - A. Awad, El-Cheikh and R. M. Hassan, , Kinetics of Sol-Gel Transformation Especially Ionotropic Gels, Revue Roumaine de Chimie, vol. 24 No, 563 , 1979
139 - R. M. Hassan, H. A. Azab and A. Hassan, , Polarographic Behaviour of Tellurite Ions in Universal Buffer Solutions., Z. Phys. Chemie. Leipzig,, vol. 268No, 955

Supervisions :

1- Doaa Abdl-Rahman Mohammed , Physico-chemical studies on some carbohydrates especially the kinetics and mechanistics of oxidation of carboxymethyl cellulose by various oxidants, M. Sc, 26 September 2010
Supervisors : Refat Moustafa Hassan, Seddique Mahmmoud Ahmed, Ahmed Fawzy Saad
2- Ahmed Fawzy Saad Sayed, Physico-Chemical Studies On Some Polyelectrolyte Macromolecules In Particularly Polysaccharides, Ph. D., 23 September 2008
Supervisors : Prof. Dr. Refat Moustafa Hassan Professor of Physical Chemistry Dr. Gamal Abd-El Wahab Ahmed Lecturer of Physical Chemistry
3- Samia Makram Ibrahim Mostafa, Physicochemical Studies on Some Macromolecules Especially the Kinetics and Mechanistics of Oxidation in Aqueous Solutions, Ph. D., 22 September 2013
Supervisors : Prof. Dr. Refat Moustafa Hassan El-Moushy Professor of Physical Chemistry Dr. Abdel Rahman Abdel Monem Dahy Lecturer of Physical Chemistry
4- Samia Makram Ibrahim Mostafa, Physicochemical Studies on Some Macromolecules Especially the Kinetics and Mecanistics of Oxidation in Aqueous Solutions, Ph. D., 22 September 2013
Supervisors : Refat Moustafa Hassan Professor of Physical Chemistry, Chemistry - Faculty of Science- Assiut University, Assiut. Abdel Rahman Abdel Monem Dahy Assistant Professor of Physical Chemistry, Chemistry - Faculty of Science- Assiut University, Assiut.
5- Najwa Thabet Abo Elmaali, Polarographic Studies of Thiosulphate-Tartrate and Thiosulphate-Halide Ternary Complexes with Some Metal Ions, M. Sc, 31 August 1986
6- Najwa Thabet Abo Elmaali, Use of Modern Electroanalytical Techniques for Determination of Some Pharmaceutical Compounds and Their Stability Constants with Several Metal Ions., Ph. D., 13 May 1990
7- Suzan Abdelfattah Sayed, Kinetics and mechanistic Approach to Electron- transfer Process in Oxidation of some Synthetic Polymers: Oxidation of Poly (ethylene glycol) by Potassium Permanganate in Aqueous Solutions , M. Sc, 18 November 2019
Supervisors : Prof. Refat Moustafa Hassan Abo-Zaid, Professor of Physical Chemistry & Material Sciences, Chemistry Department, Faculty of Science, Assiut University. Dr. Samia Makram Ibrahim Mostafa, Lecturer of Physical Chemistry, Chemistry Department, Faculty of
Number of courses0 course