Reversible Polymer Hydrogels

Abstract

Temperature sensitive hydrogels based on N-isopropyl acrylamide (NIPA) and acryloyl glucosamine (AG) were synthesized using ammonium persulfate (APS) as initiator, N,N,N',N' -tetramethylenediamene (TEMED) as activator, and N,N'-methylene bisacrylamide (BIS) as cross-linker. The hydrogels were characterized using FTIR spectral analysis to investigate the chemical composition of the hydrogels. Swelling studies of the gel in water at room temperature to relate the swelling characteristics to the chemical composition were conducted. Further, the critical swelling temperature of the gels was determined on the basis of absorbance of radiation by the gels. The gels were used in separating the water contaminants such as As+3,+5, Cr+3,+6, RDX and HMX from aqueous medium. The results of the preliminary study demonstrated that the gels are highly stable and capable of removing pollutants from water.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2008
Accession Number
ADA505994

Entities

People

  • H. Patel
  • N. Naismith
  • R. C. Flowers
  • V. M. Boddu

Organizations

  • Engineer Research and Development Center

Tags

DTIC Thesaurus Topics

  • Absorption
  • Abstracts
  • Chemical Composition
  • Chemistry
  • Critical Temperature
  • Electron Microscopy
  • Encapsulation
  • Engineering
  • Gels
  • Hydrogels
  • Information Operations
  • Materials
  • Methylenes
  • Polymers
  • Reversible
  • Scanning Electron Microscopy
  • Spectra

Fields of Study

  • Materials science

Readers

  • Nanocomposite Materials Science
  • Polymer Science and Technology