51 The influence of preparation methods on the swelling and network properties of acrylamide hydrogels with crosslinkers

Author(s): Saraydin, D; Karadag, E; Isikver, Y; Sahiner, N; Guven, O

Title: The influence of preparation methods on the swelling and network properties of acrylamide hydrogels with crosslinkers

Source: JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, A41 (4): 419-431 2004

Language: English

Document Type: Article

Author Keywords: acrylamide; hydrogel; gamma radiation; chemical initiation; swelling

Keywords Plus: ACID HYDROGELS; POLYACRYLIC-ACID; RELEASE; ADSORPTION; TRANSPORT; BEHAVIOR

Abstract: Using different types and concentrations of crosslinkers, acrylamide (AAm) hydrogels have been prepared with chemical initiation and gamma irradiation techniques. The effects of the preparation method, crosslinkers type and concentration on swelling behavior of AAm hydrogels were investigated. Swelling was performed in distilled water and followed gravimetrically. Swelling parameters such as equilibrium swelling degree, equilibrium water content (EWC), maximum swelling, initial swelling rate, diffusion exponent and coefficient, and network parameters such as molecular mass between crosslinks, crosslink density, mesh size, and porosity were calculated and evaluated. The range of equilibrium swelling degree of AAm hydrogels was varied from 255% to 1450% depending upon the preparation method, crosslinker type, and crosslinker concentration. The diffusion of water into AAm hydrogels was found to be nonFickian.

Addresses: Cumhuryet Univ, Hydrogel Res Lab, Dept Chem, TR-58140 Sivas, Turkey; Adnan Menderes Univ, Dept Chem, Aydin, Turkey; Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey

Reprint Address: Saraydin, D, Cumhuryet Univ, Hydrogel Res Lab, Dept Chem, TR-58140 Sivas, Turkey.

E-mail Address: saraydin@cumhuriyet.edu.tr

Cited References: BAJPAI AK, 2001, J APPL POLYM SCI, V81, P1238.
BEGAM T, 2003, J APPL POLYM SCI, V89, P779.
DENGRE R, 2000, J APPL POLYM SCI, V76, P1706.
DING ZY, 1991, J POLYM SCI POL PHYS, V29, P1035.
FLORY RJ, 1953, PRINCIPLES POLYM CHE.
GUVEN O, 1999, RADIAT PHYS CHEM, V56, P381.
HARIHARAN D, 1996, POLYMER, V37, P149.
JABBARI E, 2000, EUR POLYM J, V36, P2685.
LI W, 2002, REACT FUNCT POLYM, V52, P31.
MATHUR AM, 1996, J MACROMOL SCI R M C, V36, P405.
OZTOP HN, 2003, ENZYME MICROB TECH, V32, P114.
PENICHE C, 1999, BIOMATERIALS, V20, P1869.
PEPPAS NA, 2000, EUR J PHARM BIOPHARM, V50, P27.
RITGER PL, 1987, FUEL, V66, P815.
ROSIAK J, 1983, RADIAT PHYS CHEM, V22, P917.
SARAYDIN D, 1995, SEPAR SCI TECHNOL, V30, P3287.
SARAYDIN D, 2001, J APPL POLYM SCI, V79, P1809.
SARAYDIN D, 2001, J MATER SCI, V36, P2473.
SARAYDIN D, 2001, RADIAT PHYS CHEM, V60, P203.

Cited Reference Count: 19

Times Cited: 0

Publisher: MARCEL DEKKER INC

Publisher Address: 270 MADISON AVE, NEW YORK, NY 10016 USA

ISSN: 1060-1325

29-char Source Abbrev.: J MACROMOL SCI PURE APPL CHEM

ISO Source Abbrev.: J. Macromol. Sci.-Pure Appl. Chem.

Source Item Page Count: 13

Subject Category: POLYMER SCIENCE

ISI Document Delivery No.: 807RO