Browsing by Author "Karadag, E"
Now showing items 21-40 of 41
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Nicotine-selective radiation-induced poly(acrylamide/maleic acid) hydrogels
Saraydin, D; Karadag, E; Caldiran, Y; Guven, O (PERGAMON-ELSEVIER SCIENCE LTD, 2001)Nicotine-selective poly(acrylamide/maleic acid) (AAm/MA) hydrogels prepared by gamma -irradiation were used in experiments on swelling, diffusion, and interactions of the pharmaceuticals nicotine, nicotinic acid, nicotinamide. ... -
Radiation induced acrylamide/citric acid hydrogels and their swelling behaviors
Karadag, E; Saraydin, D; Sahiner, N; Guven, O (MARCEL DEKKER INC, 2001)Citric acid (CAc) moieties containing acrylamide (AAm) hydrogels were prepared by gamma irradiation of their aqueous solutions. A possible polymerization and crosslinking mechanism for acrylamide/citric acid (AAm/CAc) ... -
Radiation induced superabsorbent hydrogels. Acrylamide/itaconic acid copolymers
Karadag, E; Saraydin, D; Guven, O (WILEY-V C H VERLAG GMBH, 2001)Acrylamide/itaconic acid hydrogels in the form of rods are prepared by gamma -irradiation of ternary mixtures of acrylamide/itaconic acid/water with 2.00-5.71 kGy gamma -rays. Spectroscopic and thermal characteristic the ... -
Relationship between the swelling process and the releases of water soluble agrochemicals from radiation crosslinked acrylamide/itaconic acid copolymers
Saraydin, D; Karadag, E; Guven, O (SPRINGER-VERLAG, 2000)An attempt was made in this study to relate the releases of water soluble herbicide (sodium 2,2 dichloropropionate (Dowpon)) and model fertilizers (ammonium nitrate, potassium nitrate and ammonium sulfate) from the cylindrical ... -
The releases of agrochemicals from radiation induced acrylamide crotonic acid hydrogels
Saraydin, D; Karadag, E; Guven, O (SPRINGER VERLAG, 1998)The aim of this work was to test the application of new copolymeric poly(acrylamide/ crotonic acid) (AAm/CA) hydrogels to agrochemicals (sodium 2,2 dichloropropionate (dalapon), ammonium nitrate, potassium nitrate and ... -
Removal of some cationic dyes from aqueous solutions by acrylamide/itaconic acid hydrogels
Karadag, E; Saraydin, D; Guven, O (KLUWER ACADEMIC PUBL, 1998)Acrylamide/itaconic acid (AAm/IA) hydrogels prepared by irradiating with gamma radiating were used in experiments on the uptake of some cationic dyes such as basic red 5 (BR-5), basic violet 3 (BV-3) and brilliant cresyl ... -
Removal of water-soluble cationic dyes with TriSyl silicas
Karadag, E; Saraydin, D; Aydin, F (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 1998)In this study, the adsorption of certain water-soluble cationic dyes, (basic blue 9, basic blue 12, basic blue 17, brilliant cresyl blue, janus green B, basic green 4, basic violet 1, basic violet 3, and thionin) onto ... -
A review on the radiation synthesis of copolymeric hydrogels for adsorption and separation purposes
Guven, O; Sen, M; Karadag, E; Saraydin, D (PERGAMON-ELSEVIER SCIENCE LTD, 1999)Recent theoretical and experimental work on the radiation synthesis, characterization and the use of hydrogels containing diprotic acid moieties have been reviewed. It is shown that upon incorporating vinyl monomers carrying ... -
A study on the adsorption of some cationic dyes onto acrylamide/itaconic acid hydrogels
Karadag, E; Saraydin, D; Guven, O (SPRINGER VERLAG, 1996)Acrylamide/itaconic acid (AAm/IA) hydrogels prepared by irradiating with gamma radiation were used in experiments on the adsorption of some cationic dyes such as basic red 9 (BR 9), basic green 4 (BG 4), cresyl violet (CV), ... -
Super water-retainer hydrogels: Crosslinked acrylamide/succinic acid copolymers
Saraydin, D; Karadag, E; Guven, O (SOC POLYMER SCIENCE JAPAN, 1997)Super water-retainer hydrogels in the rod form were prepared by copolymerization of acrylamide and succinic acid monomers with gamma radiation. Swelling took place in water at 25 degrees C and was followed by weighing. The ... -
Swelling and dye adsorption properties of radiation induced N-vinyl-2-pyrrolidone/acrylonitrile hydrogels
Sahiner, N; Saraydin, D; Karadag, E; Guven, O (SPRINGER VERLAG, 1998)Swollen hydrogels were prepared by gamma-radiation copolymerization of N-vinyl-2 pyrrolidone and acrylonitrile. The influence of radiation dose and feed composition on the swelling properties, diffusional behavior of water ... -
Swelling characterization of gamma-radiation induced crosslinked acrylamide/maleic acid hydrogels in urea solutions
Karadag, E; Uzum, OB; Saraydin, D; Guven, O (ELSEVIER SCI LTD, 2006)Swelling behaviors of crosslinked acrylamide/maleic acid (CAMA) hydrogels synthesized by gamma-radiation crosslinking of acrylamide and maleic acid in aqueous urea solutions were investigated. CAMA hydrogels containing ... -
Swelling characterization of polyelectrolyte poly(hydroxamic acid) hydrogels in aqueous thiazin dye solutions
Karadag, E; Saraydin, D; Isikver, YC (TAYLOR & FRANCIS INC, 2006)In this study, swelling behavior of polyelectrolyte poly(hydroxamic acid) (PHA) hydrogels have been investigated in aqueous thiazin dye solutions. PHA hydrogels were prepared by free radical polymerizations of acrylamide ... -
Swelling equilibria and dye adsorption studies of chemically crosslinked superabsorbent acrylamide/maleic acid hydrogels
Karadag, E; Uzum, OB; Saraydin, D (PERGAMON-ELSEVIER SCIENCE LTD, 2002)Superswelling acrylamide (AAm)/maleic acid (MA) hydrogels were prepared by free radical polymerization in aqueous solution of AAm with MA as comonomer with some multifunctional crosslinkers such as trimethylolpropane ... -
Swelling of superabsorbent acrylamide/sodium acrylate hydrogels prepared using multifunctional crosslinkers
Karadag, E; Saraydin, D (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 2002)Superwaterabsorbent acrylamide-sodium acrylate hydrogels were prepared by free radical polymerization in aqueous solutions of acrylamide and of acrylamide with sodium acrylate as comonomer. For each copolymerization, nine ... -
Swelling studies of copolymeric acrylamide/crotonic acid hydrogels as carriers for agricultural uses
Karadag, E; Saraydin, D; Caldiran, Y; Guven, O (JOHN WILEY & SONS LTD, 2000)In this study, highly swollen acrylamide/crotonic acid hydrogels tilt a rod form) containing some inorganic salts such as ammonium nitrate potassium nitrate and ammonium sulphate used as fertilizer, an agricultural drug ... -
Swelling studies of super water retainer acrylamide/crotonic acid hydrogels crosslinked by trimethylolpropane triacrylate and 1,4-butanediol dimethacrylate
Karadag, E; Saraydin, D (SPRINGER-VERLAG, 2002)Superswelling acrylamide/crotonic acid (AAm/CA) hydrogels were prepared by free radical polymerization in aqueous solution of acrylamide (AAm) with crotonic acid (CA) as comonomer. For each copolymerization, four different ... -
The use of immobilized Saccharomyces cerevisiae on radiation crosslinked acrylamide-maleic acid hydrogel carriers for production of ethyl alcohol
Saraydin, D; Oztop, HN; Karadag, E; Oztop, AY; Isikver, Y; Guven, O (ELSEVIER SCI LTD, 2002)Radiation crosslinked acrylamide/maleic acid (AAm/MA) copolymers were prepared by gamma-irradiation. They were used in experiments on swelling, diffusion, and immobilization of yeast cells (Saccharomyces cerevisiae) for ... -
Use of superswelling acrylamide/maleic acid hydrogels for monovalent cationic dye adsorption
Saraydin, D; Karadag, E; Guven, O (JOHN WILEY & SONS INC, 2001)Acrylamide/maleic acid (AAm/MA) superswelling hydrogels prepared by irradiation with gamma radiation were used in experiments on swelling, diffusion, and adsorption of some water-soluble monovalent cationic dyes such as ... -
Water absorbency studies of gamma-radiation crosslinked poly(acrylamide-co-2,3-dihydroxybutanedioic acid) hydrogels
Karadag, E; Saraydin, D; Guven, O (ELSEVIER SCIENCE BV, 2004)Water absorbency behaviour of acrylamide (AAm)/2,3-dihydroxybutanedioic acid (DBA) hydrogels synthesized by, gamma-radiation crosslinking of AAm and DBA in an aqueous solution was investigated. Different amounts of DBA ...