Group
Research Areas:
Our research activities focus on the structure property relations in crosslinked polymeric materials. Swelling, elasticity, spatial gel inhomogeneity, and the dry-state porosity of hydrogels depending on their synthesis parameters and the external variables are studied both experimentally and theoretically. Our research activities also include theory and modeling of gel formation and growth processes by free-radical mechanism. Several contributions have been made from our group to the understanding of microscopic phenomena occurring during the gel formation.
Main Directions of Research of our Laboratory:
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Okay O, and Gundogan N,
Volume phase transition of polymer networks in polymeric solvents
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
Gundogan N, Melekaslan D, and
Okay O, Rubber elasticity of poly(N-isopropylacrylamide) gels at
various charge densities
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
Melekaslan D, Gundogan N, and
Okay O, Elasticity of poly(acrylamide) gel beads
Gundogan N, Melekaslan D, and
Okay O, Non-Gaussian elasticity of swollen
poly(N-isopropylacrylamide) gels at high charge densities
Gundogan N, Melekaslan D, and
Okay O, Swelling and elasticity of
poly(N-isopropylacrylamide-co-4-vinylbenzenesulfonic acid sodium salt)
hydrogels
Gundogan N, Okay O, and
Oppermann W, Swelling, elasticity and spatial inhomogeneity of
poly(N,N-dimethylacrylamide) hydrogels formed at various polymer
concentrations. Orakdogen N, Kizilay MY, and Okay O, Suppression of inhomogeneities in hydrogels formed by free-radical crosslinking copolymerization. Polymer 46, 11407-11415 (2005) pdf
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
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
Orakdogen N, and Okay O, Correlation between crosslinking efficiency and spatial inhomogeneity in poly(acrylamide)hydrogels. Polymer Bulletin 57, 631-641 (2006) pdf
|
|
|
|
Kızılay MY, and Okay O, Effect of initial monomer concentration on spatial inhomogeneity in poly(acrylamide) gels Macromolecules 36, 6856-6862 (2003) pdf
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
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
Orakdogen N, Kizilay MY, and Okay O, Suppression of inhomogeneities in hydrogels formed by free-radical crosslinking copolymerization. Polymer 46, 11407-11415 (2005) pdf
|
