Polymer Bulletin

, Volume 57, Issue 5, pp 703–712 | Cite as

Polymeric absorbent for water sorption based on chemically crosslinked poly (acrylamide/2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt) hydrogels

  • Ömer Barış Üzüm
  • Semiha Kundakcı
  • Erdener Karadağ
Article
First Online:
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Revised:
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Summary

Swelling equilibrium of polyelectrolyte copolymer gels containing of acrylamide (AAm) and 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt (AMPS) have been studied as a function of copolymer composition. AAm/AMPS hydrogels were prepared by free radical solution polymerization in aqueous solution of AAm with AMPS as anionic comonomer and two multifunctional crosslinkers such as ethylene glycol dimethacrylate (EGDMA) and trimethylolpropane triacrylate (TMPTA). Swelling experiments were performed in water at 25 °C, gravimetrically. The influence of AMPS content in hydrogels was examined. Swelling of AAm/AMPS hydrogels was increased up to 1018% (for containing 2% AMPS and crosslinked by EGDMA) 15246% (for containing 8% AMPS and crosslinked by TMPTA), while AAm hydrogels swelled up to 804% (crosslinked by TMPTA)–770% (crosslinked by EGDMA). The values of equilibrium water content of the hydrogels are 0.8851–0.9935. Diffusion behavior was investigated. Water diffusion into hydrogels was found to be non-Fickian in character.

Keywords

EGDMA Acid Sodium Salt Ethylene Glycol Dimethacrylate Hydrogel System Equilibrium Water Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Ömer Barış Üzüm
    • 1
  • Semiha Kundakcı
    • 1
  • Erdener Karadağ
    • 1
  1. 1.Fen-Edebiyat Faculty, Chemistry DepartmentAdnan Menderes UniversityAydınTurkey

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