53 Water absorbency studies of gamma-radiation crosslinked poly(acrylamide-co-2,3-dihydroxybutanedioic acid) hydrogels

Author(s): Karadag, E; Saraydin, D; Guven, O

Title: Water absorbency studies of gamma-radiation crosslinked poly(acrylamide-co-2,3-dihydroxybutanedioic acid) hydrogels

Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 225 (4): 489-496 OCT 2004

Language: English

Document Type: Article

Author Keywords: acrylamide; 2,3-dihydroxybutanedioic acid; hydrogel; gamma radiation; swelling

Keywords Plus: POLYACRYLAMIDE HYDROGELS; COPOLYMER HYDROGEL; SWELLING BEHAVIOR; AQUEOUS-SOLUTION; HEAVY-METALS; ACRYLAMIDE; SORPTION; RELEASE; REMOVAL; POLYMERS

Abstract: 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 containing AArn/DBA 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 absorbed dose and DBA content of the hydrogels on swelling properties were examined. The hydrogels showed enormous swelling in an aqueous medium and displayed swelling characteristics which were highly dependent on the chemical composition of the hydrogels and irradiation dose. Diffusion behaviour and some swelling kinetic parameters were investigated. The values of the weight swelling ratio of AAm/DBA hydrogels were between 8.34 and 15.16, while the values of the weight swelling ratio of pure AAm hydrogels were between 7.58 and 8.28. Water diffusion into hydrogels was found to be non-Fickian in character. Equilibrium water contents of the hydrogel systems were changed between 0.8681 and 0.9340. (C) 2004 Elsevier B.V. All rights reserved.

Addresses: Adnan Menderes Univ, Dept Chem, Fen Edebiyat Fac, TR-09010 Aydin, Turkey; Cumhuriyet Univ, Dept Chem, TR-58140 Sivas, Turkey; Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey

Reprint Address: Karadag, E, Adnan Menderes Univ, Dept Chem, Fen Edebiyat Fac, TR-09010 Aydin, Turkey.

E-mail Address: ekaradag@adu.edu.tr

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Cited Reference Count: 32

Times Cited: 0

Publisher: ELSEVIER SCIENCE BV

Publisher Address: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS

ISSN: 0168-583X

29-char Source Abbrev.: NUCL INSTRUM METH PHYS RES B

ISO Source Abbrev.: Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms

Source Item Page Count: 8

Subject Category: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL; PHYSICS, NUCLEAR; INSTRUMENTS & INSTRUMENTATION; NUCLEAR SCIENCE & TECHNOLOGY

ISI Document Delivery No.: 858ZS