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

Saraydin D., Karadag E., Isikver Y., Sahiner N., Guven O.

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, sa.4, ss.419-431, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: Sayı: 4
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1081/ma-120028476
  • Dergi Adı: JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.419-431
  • Anahtar Kelimeler: acrylamide, hydrogel, gamma radiation, chemical initiation, swelling, ACID HYDROGELS, POLYACRYLIC-ACID, RELEASE, ADSORPTION, TRANSPORT, BEHAVIOR
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

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.