Browsing by Author "Saraydin, D"
Now showing items 21-40 of 52
-
Incorporation of malonic acid into acrylamide hydrogel by radiation technique and its effect on swelling behavior
Saraydin, D; Karadag, E; Sahiner, N; Guven, O (KLUWER ACADEMIC PUBL, 2002)Different amounts of malonic acid (MAc) containing acrylamide (AAm) hydrogels were obtained in the form of rods via a radiation technique. Swelling experiments were performed in water at 25 degreesC, gravimetrically. The ... -
Influence of some amino acids on the dynamic swelling behavior of radiation-induced acrylamide hydrogel
Saraydin, D; Oztop, HN; Karadag, E; Caldiran, Y; Guven, O (HUMANA PRESS INC, 1999)The influence of some amino acids-alanine, glycine, valine, glutamine, histidine, phenylalanine, and tryptophan-on the swelling behavior of acrylamide (AAm) hydrogel prepared by gamma-radiation was investigated. Swelling ... -
Influence of some aromatic amino acids on the swelling behavior of acrylamide/maleic acid hydrogel
Oztop, HN; Saraydin, D; Karadag, E; Caldiran, Y; Guven, O (SPRINGER VERLAG, 1998)Influence of some aromatic amino acids (histidine, phenylalanine and tryptophan) on the swelling behavior of acrylamide/maleic acid hydrogel (AAm/MA) prepared by gamma-radiation was investigated. Swelling tests of AAm/MA ... -
Influence of some crosslinkers on the swelling of acrylamide crotonic acid hydrogels
Karadag, E; Saraydin, D; Guven, O (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 1997)Acrylamide-crotonic acid hydrogels in the form of rods are prepared by gamma-irradiation of quaternary mixtures of acrylamide-crotonic acid-crosslinker-water with 2.6 and 5.2 kGy gamma-rays. The influence of the applied ... -
Interaction of nicotine and its pharmaceutical derivatives with acrylamide/itaconic acid hydrogels
Karadag, E; Saraydin, D; Guven, O (JOHN WILEY & SONS INC, 1997)Acrylamide/itaconic acid hydrogels (AAm/IA) containing different amounts of itaconic acid prepared by irradiating with gamma radiation were used in experiments on swelling, diffusion, and interactions of the pharmaceuticals ... -
Interaction of some cationic dyes with acrylamide/itaconic acid hydrogels
Karadag, E; Saraydin, D; Guven, O (JOHN WILEY & SONS INC, 1996)Acrylamide/itaconic acid (AAm/IA) hydrogels prepared by irradiating with gamma radiation were used in experiments on uptake of some cationic dyes such as union green B (UG-B), basic blue 17 (BB-17), basic red 2 (BR-2), and ... -
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. ... -
PH-sensitive chitosan films for baker's yeast immobilization
Oztop, HN; Saraydin, D; Cetinus, S (HUMANA PRESS INC, 2002)Dried baker's yeast cells were immobilized on a chitosan film, which is a natural polymer. Prepared chitosan films were treated with glutaraldehyde to facilitate the immobilization of the cells. The effects of the amount ... -
Poly(hydroxamic acid) hydrogels from poly(acrylamide): preparation and characterization
Isikver, Y; Saraydin, D; Sahiner, N (SPRINGER-VERLAG, 2001)Poly(hydroxamic acid) (PHA) hydrogels from crosslinked poly(acrylamide) (PAAm) hydrogels, containing different type crosslinkers such as such as N, N'-methylene bisacrylamide (N) and ethyleneglycol dimethacrylate (E). The ... -
Radiation crosslinked poly(acrylamide/2-hydroxypropyl methacrylate/maleic acid) and their usability in the uptake of uranium
Saraydin, D; Solpan, D; Isikver, Y; Ekici, S; Guven, O (MARCEL DEKKER INC, 2002)The terpolymeric poly(acrylamide/2-hydroxy propylmethacrylate/maleic acid) (AAm/HPMA/MA) hydrogels in the rod form have been prepared by gamma radiation of quaternary mixtures of acrylamide/2-hydroxy propylmethacrylate/ ... -
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 ...