Oguz   Okay

SCIENTIFIC PUBLICATIONS 

 

        

        a) In Journals

                                       (subject areas)

 
 
 
Important:  The copyright of these papers belongs to the journal or publisher in each case. As such, while the papers can be accessed as PDF files (click on "pdf"), the online versions are for consultation purposes only.  The papers may not be reproduced, printed, copied or distributed in any form without the permission of the appropriate copyright holder. 
 
In International Journals

1. Okay  O,  Schindlbauer H,  Wasserlösliche Kationisch Modifizierte Copolymere mit Acrylamid
 Angew. Makromol. Chem. 122, 21-31 (1984)                                                                                   pdf


 2. Okay O,  Schindlbauer H, Stark basische Ionenaustauscher auf Guanidiniumsalz-Formaldehyd-Aceton-Basis
 Angew. Makromol. Chem. 127, 203-209 (1984)                                                                              pdf

 3. Okay O, Guclu H, Soner E, Balkas TI, Boron Pollution in the Simav River, Turkey and Various Methods of Boron Removal
 Water Research 19, 857 - 862 (1985)                                                                                              pdf

 4. Okay O, Soner E, Gungor A, Balkas, TI, Phase Separation in the Synthesis of Styrene-Divinylbenzene Copolymers with Di-2-ethylhexyl Phthalate as Diluent
 J. Appl. Polym. Sci. 30, 2065-2074 (1985)                                                                                        pdf

 5. Okay O, Balkas TI, Heterogeneous Styrene-Divinylbenzene Copolymers in Collapsed and Reexpanded States
 J. Appl. Polym. Sci. 31, 1785-1795 (1986)                                                                                        pdf

 6. Okay O, Heterogeneous Styrene-Divinylbenzene Copolymers. Stability Conditions of the Porous Structures
 J. Appl. Polym. Sci. 32, 5533-5542 (1986)                                                                                        pdf

 7. Okay O,  Styrene-Divinylbenzene Copolymers IV.  Porosity Changes During Chloromethylation
 Angew. Makromol. Chem. 143, 209-214 (1986)                                                                              pdf

 8. Okay O,  Porous Maleic Anhydride-Styrene-Divinylbenzene Copolymer Beads
 J. Appl. Polym. Sci. 34, 307-317 (1987)                                                                                           pdf

 9. Okay O, Styrene-Divinylbenzene Copolymers V.  Inhomogeneity in the Structure and Average Degree of Swelling
 Angew. Makromol. Chem. 153, 125-134 (1987)                                                                             pdf

 10. Okay O, Styrene-Divinylbenzene Copolymers VI.  Porosity Formation in the Presence of Toluene-Cyclohexanol Mixtures as Inert Diluents
 Angew. Makromol. Chem. 157, 1-13 (1988)                                                                                   pdf

 11. Okay O, Styrene-Divinylbenzene Copolymers VII. Stability of the Porous Structures Formed in Toluene-Cyclohexanol Mixtures
 Angew. Makromol. Chem. 157, 15-21 (1988)                                                                                pdf

12. Okay O, Formation and Structural Characteristics of Loosely Crosslinked Styrene-Divinylbenzene Networks
 Makromol. Chem. 189, 2201-2217 (1988)                                                                                      pdf

13. Okay O, Funke W, Anionic Dispersion Polymerization of  1,4-Divinylbenzene
 Macromolecules 23, 2623-2628 (1990).                                                                                         pdf

14. Okay O, Funke W,  Conditions of Microgel Formation in the Anionic Polymerization of 1,4-Divinylbenzene
 Makromol. Chem. 191, 1565-1573 (1990).                                                                                    pdf

15. Okay O, Funke W,  Steric Stabilization of Reactive Microgels from 1,4-Divinylbenzene
 Makromol. Chem. Rapid Commun. 11, 583-587 (1990).                                                              pdf

16. Okay O, Gurun C, Formation and Structural Characteristics of Porous Ethylene Glycol Dimethacrylate Networks
 J. Appl. Polym. Sci. 46, 421-434 (1992).                                                                                      pdf

17. Okay O, Gurun C, Synthesis and Formation Mechanism of  Porous 2-Hydroxyethyl Methacrylate - Ethylene Glycol Dimethacrylate Copolymer Beads
 J. Appl. Polym. Sci. 46, 401-410 (1992).                                                                                      pdf                             

18. Funke W, Bauer H, Joos B, Kaczun J, Kleiner B, Leibelt U, Okay O,  Intramolecularly Crosslinked Macromolecules - Formation and Structure, Characterization and Particle Properties
 Polymer International 30, 519 - 523 (1993).

19. Okay O, Kinetic Modelling of Network Formation and Properties in Free-radical Copolymerization
 Polymer 35, 796 - 807 (1994).

20. Okay O, Gel Properties in Free-radical Crosslinking Copolymerization: A Kinetic Approach
 Makromol. Chem. Theory and Simul. 3, 417 - 427 (1994).                                                           pdf

21. Okay O, Kinetics of Gelation in Free-radical Crosslinking Copolymerization
 Polymer 35, 2613 - 2618 (1994).                                                                                            

22. Pekcan Ö, Yilmaz Y,  Okay O, Fluorescence Technique to Study Sol-Gel Transition in the Free-radical Crosslinking Copolymerization of Methyl Methacrylate and Ethylene Glycol Dimethacrylate
 Chem. Phys. Lett. 229, 537-540 (1994).

23. Okay O,  Naghash HJ, Pendant Vinyl Group Reactivity during the Free-radical Copolymerization of Methyl Methacrylate and Ethylene Glycol Dimethacrylate
 Polymer Bulletin 33, 665 - 672 (1994).                                                                                      pdf 

                                                                                
 24. Naghash HJ, Okay O,  Yildirim H,  Gel Formation in Free-radical Crosslinking Copolymerization
 J. Appl. Polym. Sci. 56, 477 - 483 (1995).                                                                                 pdf    

                                                                 
 25. Okay O, Kurz M, Lutz K,  Funke W,  Cyclization and Reduced Pendant Vinyl Group Reactivity during the Free-radical Crosslinking Polymerization of 1,4-Divinylbenzene
 Macromolecules 28, 2728 - 2737 (1995).                                                                                 pdf

26. Okay O, Naghash HJ, Capek I,  Free radical crosslinking copolymerization. Effect of cyclization on diffusion-controlled termination at low conversion
 Polymer 36, 2413-2419 (1995).                                                                                               pdf

27. Okay O, Naghash HJ, Pekcan O,  Critical properties for gelation in free-radical crosslinking copolymerization
 Macromol. Theory & Simul. 4, 967-981 (1995).                                                                     pdf                 

                                     
28. Küçük I, Kuyulu A, and Okay O,  Effect of diluents on the porous structure of crosslinked polymethyl methacrylate beads
 Polymer Bulletin 35, 511-516 (1995).                                                                                   pdf

29. Naghash HJ, and Okay O,  Formation and structure of polyacrylamide gels
 J. Appl. Polym. Sci. 60, 971-979 (1996).                                                                               pdf

30. Pekcan Ö, Yilmaz Y, and Okay O, In situ fluorescence experiments to test the reliability of random bond and site bond percolation models during sol-gel transition in free-radical crosslinking copolymerization
 Polymer 37, 2049-2053 (1996).                                                                                           pdf

31. Tanrisever T, Okay O, and Sönmezoglu IC,  Kinetics of emulsifier-free emulsion polymerization of methyl methacrylate
 J. Appl. Polym. Sci. 61, 485-493 (1996).                                                                             pdf

32. Naghash HJ, Okay O, and Yagci Y,  Size distribution of polymers during the photoinitiated free-radical copolymerization of methyl methacrylate and ethylene glycol dimethacrylate
 Polymer Bulletin 37, 207-213 (1996)                                                                                  pdf 

                                                        
33. Pekcan O, Yilmaz Y, and Okay O, Determination of reaction activation energy during gelation in free-radical crosslinking copolymerization using the steady-state fluorescence method
 J. Appl. Polym. Sci. 61, 2279-2284 (1996)                                                                           pdf


34. Okay O, Critical properties for gelation in free-radical crosslinking polymerization
Turkish Journal of Physics 20, 27-32 (1996)                                                                          

35. Kayaman N, Okay O, and Baysal BM, Phase transition of polyacrylamide gels in PEG solutions
 Polymer Gels and Networks 5, 167-184 (1997).                                                                  pdf

36. Naghash HJ, Okay O, and Yagci Y, Gel formation by chain crosslinking photopolymerization of methyl methacrylate and ethylene glycol dimethacrylate
 Polymer 38, 1187-1196 (1997)                                                                                           pdf

37. Pekcan O, Yilmaz Y, and Okay O, Real time monitoring of polymerization rate of methyl methacrylate using fluorescence probe
 Polymer  38, 1693-1698 (1997).                                                                                        pdf

38. Kayaman N, Okay O, and Baysal BM,  Swelling of polyacrylamide gels in aqueous solutions of  ethylene glycol oligomers
 Polymer Gels and Networks 5, 339-356 (1997).                                                               pdf

39. Okay O, Balimtas NK, and Naghash HJ,  Effects of cyclization and pendant vinyl group reactivity on the swelling behavior of polyacrylamide gels
 Polymer Bulletin 39, 233-239 (1997).                                                                              

40. Kayaman N, Okay O, and Baysal BM, Phase transition of hydrolyzed polyacrylamide gels in PEG solutions
 Turkish Journal of Chemistry 21, 346-352 (1997)                                                           pdf


41. Kayaman N, Kazan D, Erarslan A, Okay O, and Baysal BM, Structure and protein separation efficiency of poly(N-isopropylacrylamide) gels: Effect of synthesis conditions
 J. Appl. Polym. Sci. 67, 805-814 (1998).                                                                         pdf
 
42. Funke W, Okay O,  and Joos-Muller B,  Microgels- intramolecularly crosslinked macromolecules with a globular structure
 Advances in Polymer Science 136,139-234 (1998)                                                          pdf
 
43. Keskinel M, and Okay O, Effects of Cyclization and Electrostatic Interactions on the Termination Rate of Macroradicals in Free-Radical Crosslinking Copolymerization
 Polymer Bulletin 40, 491- 498 (1998)                                                                              pdf
 
44. Kayaman N, Okay O, and Baysal BM,  Swelling of polyacrylamide gels in polyacrylamide solutions                                               
 J. Polym. Sci., Polym. Phys. Ed., 36, 1313-1320 (1998)                                                  pdf


45. Okay O, and Akkan U,  Heterogeneities in polyacrylamide gels immersed in acetone- water mixtures
 Polymer Bulletin 41, 363-370 (1998)                                                                                pdf
 
46. Okay O, Sariisik SB, Zor DS, Swelling Behavior of Anionic Acrylamide-based Hydrogels in Aqueous Salt Solutions: Comparison of Experiment with Theory
 J. Appl. Polym. Sci. 70, 567-575 (1998)                                                                            pdf


47. Erbay E, and Okay O,  Macroporous Styrene - Divinylbenzene Copolymers: Formation of Stable Porous Structures during the Copolymerization
 Polymer Bulletin 41, 379-385 (1998)                                                                                pdf

48. Erbay E, and Okay O, Pore memory of Macroporous Styrene -Divinylbenzene Copolymer Beads
 J. Appl. Polym. Sci. 71, 1055-1062 (1999)                                                                       pdf

49. Okay O,  Phase Separation in Free-Radical Crosslinking Copolymerization: Formation of Heterogeneous  Polymer Networks
 Polymer 40, 4117-4129 (1999)                                                                                         pdf

50. Okay O, Kaya D, and Pekcan O,  Free-radical Crosslinking Copolymerization of Styrene and Divinylbenzene: Real Time Monitoring of the Gel Effect Using Fluorescence Probe
 Polymer 40, 6179-6187 (1999)                                                                                         pdf

 

51. Pekcan O, Kaya D, and Okay O, Observation of critical opalescence in free radical crosslinking copolymerization of styrene and divinylbenzene  by fluorescence method 
 Eur. Polymer J. 35, 2025-2029 (1999)                                                                             pdf

 

52. Okay O,  Formation of Macroporous Styrene - Divinylbenzene Copolymer Networks: Theory versus Experiments                              
 J. Appl. Polym. Sci. 74, 2181-2195 (1999)                                                                       pdf


53. Okay O, Yilmaz Y, Kaya D, Keskinel M, and Pekcan O, Heterogeneities during the formation of poly(sodium acrylate) hydrogels
Polymer Bulletin 43, 425-431 (1999)                                                                                pdf


54. Okay O, and Sariisik SB, Swelling Behavior of Poly(acrylamide-co-sodium acrylate) Hydrogels in Aqueous Salt Solutions: Theory versus Experiments
 Eur. Polymer J. 36, 393-399 (2000)                                                                                  pdf


55. Durmaz S, and Okay O, Phase separation during the formation of poly(acrylamide) hydrogels
 Polymer 41, 5729-5735 (2000)                                                                                        pdf

56. Okay O, Gel growth in free-radical crosslinking copolymerization: Effect of inactive gel radicals
 Macromol. Theory Simul. 9, 354-361 (2000)                                                                  pdf


57. Durmaz S, and Okay O, Acrylamide / 2-acrylamido- 2- methyl propane sulfonic acid sodium salt –based hydrogels: Synthesis and characterization
 Polymer 41, 3693-3704 (2000)                                                                                       pdf


58. Okay O, Durmaz S, and Erman B,  Solution crosslinked poly(isobutylene) gels: synthesis and swelling behavior
Macromolecules 33, 4822-4827 (2000)                                                                           pdf


59. Okay O, Macroporous Copolymer Networks
 Progress in Polymer Science 25, 711-779  (2000)                                                         pdf


60. Melekaslan D, and Okay O, Swelling of strong polyelectrolyte hydrogels in polymer solutions: Effect of ion pair formation on the polymer collapse
 Polymer 41, 5737-5747 (2000)                                                                                        pdf


61. Sayil C, and Okay O, The effect of preparation temperature on the swelling behavior of poly(N-isopropylacrylamide) gels
Polymer Bulletin 45, 175-182 (2000)                                                                               pdf


62. Kara S, Okay O, and Pekcan O, In situ photon transmission technique for monitoring phase separation in real time during gelation
Polymer Bulletin 45, 281-285 (2000)                                                                                pdf

 

63. Ince MN, Erman B, Okay O, Durmaz S, Elastic behavior of solution crosslinked poly(isobutylene) gels under large compression
Polymer 42, 3771-3777 (2001)                                                                                          pdf

 

64. Melekaslan D, and Okay O, Reentrant phase transition of strong polyelectrolyte poly(N-isopropylacrylamide) gels in PEG solutions

Macromol. Chem. Phys. 202,304 - 312 (2001)                                                                  pdf

 

65. Sayil C, and Okay O, Macroporous poly(N-isopropyl) acrylamide networks: Formation conditions
Polymer 42, 7639 - 7652 (2001)                                                                                         pdf  

 

66.  Durmaz S, and Okay O, Inhomogeneities in poly(acrylamide) gels: Position-dependent elastic modulus measurements  
Polymer Bulletin 46, 409 - 418 (2001)                                                                                 pdf       

 

67. Sayil C, and Okay O, Swelling-shrinking hysteresis of poly(N-isopropyl)acrylamide) gels in sodium dodecylbenzenesulfonate solutions
J. Appl. Polym. Sci. 83, 1228-1232 (2002)                                                                          pdf

 

68.  Okay O, and Durmaz S, Charge density dependence of elastic modulus of strong polyelectrolyte hydrogels
Polymer  43, 1215-1221 (2002)                                                                                           pdf  

 

69.  Okay O, and Gundogan N, Volume phase transition of polymer networks in polymeric solvents
Macromol. Theory Simul. 11, 287-292 (2002)                                                                   pdf

 

70.  Gundogan N, and Okay O, Reentrant phase transition of poly(N-isopropylacrylamide) gels in polymer solutions: Thermodynamic analysis

 J. Appl. Polym. Sci.  85, 801-813 (2002)                                                                            pdf

 

71. Kara S, Okay O, and  Pekcan O, Real time temperature and photon transmission measurements for monitoring phase separation during the formation of poly(N-isopropylacrylamide) gels
 J. Appl. Polym. Sci. 86, 3589- 3595 (2002).                                                                       pdf

 

72. Durmaz S, Fank S, and Okay O, Swelling and mechanical properties of solution crosslinked poly(isobutylene) gels
 Macromol. Chem. Phys. 203, 663-672 (2002)                                                                   pdf

 

73. Gundogan N, Melekaslan D, and Okay O, Rubber elasticity of poly(N-isopropylacrylamide) gels at various charge densities 
 Macromolecules 35, 5616-5622 (2002)                                                                             pdf

 

74. Ozturk V, and Okay O, Temperature sensitive poly(N-t-butyl acrylamide-co-acrylamide) hydrogels: synthesis and swelling behavior 
 Polymer 43, 5017-5026 (2002)                                                                                        pdf

 

75.  Sayil C, and Okay O,  Macroporous poly(N-isopropylacrylamide) networks  

Polymer Bulletin  48, 499-506 (2002)                                                                               pdf

 

76. Melekaslan D, and Okay O, Temperature dependent swelling behavior of ionic poly(N-isopropylacrylamide) gels in PEG solutions

Polymer Bulletin 49, 181-188 (2002)                                                                              pdf

 

77. Melekaslan D, Gundogan N, and Okay O, Swelling and elasticity of poly(N-isopropylacrylamide) gels immersed in the melt of poly(ethylene glycol) chains 

Polymer 44, 2281-2288 (2003)                                                                                        pdf

 

78. Kızılay MY, and Okay O, Effect of initial monomer concentration on spatial inhomogeneity in poly(acrylamide) gels

Macromolecules 36, 6856-6862 (2003)                                                                          pdf

 

79. Ozmen MM, and Okay O, Swelling behavior of strong polyelectrolyte poly(N-t-butyl acrylamide-co-acrylamide) hydrogels 

Eur. Polym. J. 39, 877-886 (2003)                                                                                pdf

 

80. Melekaslan D, Gundogan N, and Okay O, Elasticity of poly(acrylamide) gel beads 
Polymer Bulletin 50, 287-294 (2003)                                                                             pdf

 

81. Kızılay MY, and Okay O, Effect of hydrolysis on spatial inhomogeneity in poly(acrylamide) gels of various crosslink densities

Polymer 44, 5239-5250 (2003)                                                                                        pdf

 

82. Gundogan N, Melekaslan D, and Okay O, Non-Gaussian elasticity of swollen poly(N-isopropylacrylamide) gels at high charge densities 
 Eur. Polym. J. 39, 2209-2216 (2003)                                                                              pdf

 

83. Melekaslan D, Kasapoglu F, Ito K, Yagci Y, and Okay O, Swelling and elasticity of hydrogels based on a poly(ethylene oxide) macroinimer

Polymer Int. 53, 237- 242 (2004)                                                                                     pdf

 

84. Cerid H, and Okay O, Minimization of spatial inhomogeneity in polystyrene gels formed by free-radical mcahnism 
 Eur. Polym. J. 40, 579-587 (2004)                                                                                   pdf

 

85. Gundogan N, Melekaslan D, and Okay O, Swelling and elasticity of poly(N-isopropylacrylamide-co-4-vinylbenzenesulfonic acid sodium salt) hydrogels 
J. Appl. Polym. Sci. 94, 135-141 (2004)                                                                           pdf

 

86. Kızılay MY, and Okay O, Effect of swelling on spatial inhomogeneity in poly(acrylamide) gels formed at various monomer concentrations.

Polymer 45, 2567-2576(2004)                                                                                          pdf

 

87. Gundogan N, Okay O, and Oppermann W, Swelling, elasticity and spatial inhomogeneity of poly(N,N-dimethylacrylamide) hydrogels formed at various polymer concentrations. 
 Macromol. Chem. Phys. 205, 814-823 (2004)                                                               pdf

 

88. Ozmen MM, and  Okay O, Non-Gaussian elasticity of poly(2-acrylamido-2-methylpropane sulfonic acid) gels. 

Polymer Bulletin 52, 83-90 (2004)                                                                                 pdf

 

89. Yazici I, and  Okay O, Spatial inhomogeneity in poly(acrylic acid) hydrogels. 

Polymer 46, 2595-2602 (2005)                                                                                       pdf       

 

90. Ozdogan A, and  Okay O, Effect of spatial gel inhomogeneity on the elastic modulus of strong polyelectrolyte hydrogels. 

Polymer Bulletin 54, 435-442 (2005)                                                                             pdf      

 

91. Okay O, Reddy SK, and Bowman CN,  Molecular weight development during thiol-ene photopolymerizations  

Macromolecules 38, 4501-4511 (2005)                                                                         pdf  

 

92. Okay O, and Bowman CN,  Kinetic modeling of thiol-ene reactions with both step and chain growth aspects. 

Macromol. Theory Simul. 14, 267-277 (2005)                                                               pdf 

 

93. Can V, and Okay O,   Shake gels based on Laponite-PEO mixtures: Effect of polymer molecular weight. 

Designed  Monomers Polymers 8, 453-462 (2005)                                                      pdf 

 

94. Ozmen MM, and Okay O,   Superfast responsive ionic hydrogels with contrallable pore size. 

 Polymer 46, 8119-8127 (2005)                                                                                   pdf

 

95. Orakdogen N, Kizilay MY, and Okay O,   Suppression of inhomogeneities in hydrogels formed by free-radical crosslinking copolymerization.

 Polymer 46, 11407-11415 (2005)                                                                              pdf

 

96. Orakdogen N, and Okay O,  Reentrant conformation transition in poly(N,N-dimethylacrylamide) hydrogels in water-organic solvent mixtures

Polymer 47, 561-568 (2006)                                                                                       pdf

 

97. Dogu Y, and  Okay O, Swelling-deswelling kinetics of poly(N-isopropylacrylamide) hydrogels formed in PEG solutions. 

J. Appl. Polym. Sci. 99, 37-44 (2006)                                                                        pdf  

 

98. Orakdogen N, and Okay O,   Effect of initial monomer concentration on the equilibrium swelling and elasticity of hydrogels. 

Eur. Polym. J. 42, 955-960 (2006)                                                                           pdf  

 

99. Ceylan D, Ozmen MM, and Okay O,   Swelling-deswelling kinetics of poly(acrylamide) hydrogels and cryogels. 

J. Appl. Polym. Sci. 99, 319-325  (2006)                                                                  pdf

 

100. Ceylan D, Can V, and Okay O,   Phase transition of acrylamide-based polyampholyte gels in water. 

J. Macromol. Sci. A: Pure and Appl. Chem. 43, 1635-1649 (2006)                        pdf

 

101. Ozmen MM, and Okay O, Superfast responsive ionic hydrogels: Effect of the monomer concentration. 

J. Macromol. Sci. A: Pure and Appl. Chem. 43, 1215-1225 (2006)                        pdf  

 

102. Orakdogen N, and Okay O,   Correlation between crosslinking efficiency and spatial inhomogeneity in poly(acrylamide)hydrogels. 

 Polymer Bulletin 57, 631-641 (2006)                                                                     pdf 

 

103. Reddy SK, Okay O, and Bowman CN, Network Development in Mixed Step-Chain Growth Thiol-Vinyl Photopolymerizations

Macromolecules 39, 8832-8843 (2006)                                                                  pdf

 

104. Dinu MV, Ozmen MM, Dragan ES, and Okay O, Freezing as a path to build macroporous structures: Superfast responsive polyacrylamide hydrogels. 

Polymer 48, 195-204 (2007)                                                                                   pdf

 

105. Orakdogen N, and Okay O,   Influence of the initiator system on the spatial inhomogeneity in acrylamide-based hydrogels.

J. Appl. Polym. Sci. 103, 3228-3237 (2007)                                                           pdf

 

106. Okay O, Macroporous hydrogels from smart polymers, in B. Mattiason and I. Galaev, eds., Smart Polymers: Application in Biotechnology and Biomedicine, 2nd edition, pp. 269-299, CRC Press, Taylor and Francis Group, Boca Raton, FL, 2007. 

 

107. Okay O, and Oppermann W,  Polyacrylamide - clay nanocomposite hydrogels: Rheological and light scattering characterization.

Macromolecules 40, 3378-3387 (2007)                                                                pdf

 

108. Ozmen MM, Dinu MV, Dragan ES, and Okay O, Preparation of Macroporous Acrylamide-based Hydrogels: Cryogelation under Isothermal Conditions.

 J. Macromol. Sci. A: Pure and Appl. Chem. 44, 1195-1202 (2007)                   pdf

 

109. Kuru EA, Orakdogen N, and Okay O,  Preparation of homogeneous polyacrylamide hydrogels by free-radical crosslinking copolymerization.

Eur. Polym. J. 43, 2913-2921 (2007)                                                                    pdf

 

110. Can V, Abdurrahmanoglu S, and Okay O, Unusual swelling behavior of polymer-clay nanocomposite hydrogels.

Polymer 48, 5016-5023 (2007)                                                                              pdf

 

111. Ceylan D, and Okay O, Macroporous polyisobutylene gels:  A novel tough organogel with superfast responsivity.

Macromolecules 40, 8742-8749 (2007)                                                                  pdf

 

112. Ozmen MM, Dinu MV, and Okay O, Preparation of macroporous poly(acrylamide) hydrogels in DMSO/water mixture at subzero temperatures 

Polymer Bulletin  60, 169-180 (2008)                                                                   pdf

 

113. Abdurrahmanoglu S, Can V, and Okay O, Equilibrium swelling behavior and elastic properties of polymer-clay nanocomposite hydrogels

 J. Appl. Polym. Sci. 109, 3714-3724 (2008)                                                         pdf

 

114. Abdurrahmanoglu S, and Okay O, Preparation of Homogeneous Hydrogels by Controlling the Crosslinker Reactivity and Availability

 J. Macromol. Sci. A: Pure and Appl. Chem. (2008) 

 

115. Dogu S, Kilic M, and Okay O, Collapse of polyampholyte hydrogels in water

 

116. Ozmen M.M., and Okay O, Formation of macroporous poly(acrylamide) hydrogels in DMSO/water mixture:  Transition from cryogelation to phase separation copolymerization     

 

117. Topuz F., and Okay O, Rheological behavior of responsive DNA hydrogels      

 

 

 

 

 

                                                                           

 

                                                                                                                                          

Patents

1. T. C. Patent No: TR 1996 00295 B,  8.04.1996

 Kayaman, N., Okay, O., Kazan, D., Erarslan, A.A, and Baysal, B.M.

"Biyolojik çözeltilerin konsantre edilmesi için sicakliga duyarli polimerik jel kürecikleri üretimi”


2.  International Patent, 

Patent Number  WO0148042 A1, Publication Date: 2001-07-05 AU2470800    EP1,265,936B1    TR200201623T  EA4535  DE69920060T

Erman, B.,  Okay, O.,  Durmaz, S.
"Superabsorbent materials based on butyl rubber: Process for making said materials and use of them"

 

3. T. C. Patent Müracaatı, Mart 2007

 Okay, O., Ceylan, D.

"Petrol döküntülerinin yüzey sularından uzaklaştırılması için yeni bir makrogözenekli sorbent üretimi ve uygulaması”

 

 

                                                                                                                                           

Others (papers in national journals, thesis, reports, books)


1. Okay, O., Die Einbaumöglichkeiten von Guanidin in Polymere und die Herstellung von Ionenaustauschern auf Guanidinsalz-Formaldehyd-Basis,  

Diplomarbeit, Technische Universitaet Wien, 1978.
 
2. Okay, O., Herstellung von ionischen Polymeren auf Guanidinsalz - Formaldehyd / Aceton- und auf Acrylamid-Basis, ihre Anwendung als Anionenaustauscher und Flockungshilfsmittel zur Reinigung von Abwaessern, 

Dissertation, Technische Universitaet Wien, 1981.
 
3. Okay, O., Balkas, T., Jeotermal sulardan borun kimyasal yolla arindirilmasi, 

TÜBITAK MBEAE Yayin No: 97, Subat 1983, 17 sayfa.
 
4. Okay, O., Güçlü, H., Birecikli, Ü., Emil, T., Pentaeritritol üretimi” TÜBITAK MBEAE Yayin No: 110, Kasim 1983, 28 sayfa.
 
5. TÜBITAK MBEAE Kimya Müh. Aras. Böl., Waste water treatment and disposal studies NATO TU - Waters, Progress reports, 1984 - 1985.
 
6. Okay, O., Experiments in Physical Chemistry, 

Ders ve Laboratuvar Kitabi, Dogu Akdeniz Üniversitesi, Eylül 1991, 98 sayfa.
 
7. Okay, O., Teknoloji mi? Temel Arastirma mi?, 

Cumhuriyet Bilim Teknik, Sayi 359, sayfa 6, Subat 1994. (MAKALE)

 

8. Pekcan, Ö., Yilmaz, Y., Okay, O., Fluorescence technique for studying the sol-gel transition in free-radical crosslinking copolymerization of methyl methacrylate and ethylene glycol dimethacrylate, abstract,
 Turkish Journal of Physics 20, 70 (1996)
 
9. Kaya, D., Okay, O., Pekcan, Ö., Real Time Monitoring of the Gel Effect in Free-Radical Crosslinking Copolymerization of Styrene and Divinylbenzene Using Fluorescence Probe
Turkish Journal of Physics 23, 179  (1999)

 

10. Okay, O., Olgun, H., Karakoc, F., Ayar, R., Okay, D., 21-23/04/2001 Hasandağı Tırmanışı
MAM Gündem, Sayı 35, Mayıs-Haziran 2001, Sayfa 9-11 (GEZİ)

 

11. Okay, O., Kimya Bölümlerinin bilimsel başarısı,

Cumhuriyet Bilim Teknik, Sayı 1050 (4.05.2007). (MAKALE) 

 

 

                                                                                                                                         

                  

                         Presentations in Conferences

 

International
 

      
Main and invited lectures

		

			
 

      

      
 Okay,
      O., “Grundlagenforschung oder anwendungsorientierte Forschung ?” Festvortrag  

      
Kolloquium der Alexander von Humboldt-Stiftung 
      für Forschungsstipendiaten aus der Türkei, 19-21 April 1996, Hotel Büyük 
      Efes, Izmir 

        
 

        
Okay, O. “Inhomogeneous and heterogeneous network formation by free-radical polymerization”
 4th Brazilien Polymer Conference, Bahia-Salvador, Brasil. 28.09 / 2.10.1997 invited lecture