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γ-irradiation synthesis of a smart hydrogel: Optimization using taguchi method and investigation of its swelling behavior

Pourjavadi, A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. Publisher: 2010
  3. Abstract:
  4. In the current work, synthesis of an environmental-sensitive superabsorbent hydrogel using γ-rays is described. Grafted polyacrylonitrile onto a homogeneous solution of starch and kappa-Carrageenan hybrid backbones created a smart material with reversible behavior. The reaction parameters (i.e. acrylonitrile, starch and kappa-Carrageenan concentration, as well as γ-irradiation time) affecting the. water absorbency of the. hydrogel were optimized using the. Taguchi method, in order to achieve a hydrogel with high swelling capacity. FTIR spectroscopy was used for confirming the. structure of the final product and the morphology of the synthesized hydrogel was examined by a scanning electron microscope. The swelling behavior of the optimized hydrogel sample in various NaCl concentrations and swelling kinetics in distilled water were investigated. The. pH-reversibility and on-off switching behaviors of entitled smart hydrogel make it a good candidate for consideration as a potential carrier for bioactive agents like drugs
  5. Keywords:
  6. γ-irradiation ; Superabsorbent hydrogel ; Swelling behavior ; Synthesis ; Taguchi method ; Bioactive agents ; Distilled water ; High swelling ; Homogeneous solutions ; Irradiation time ; Kappa carrageenan ; NaCl concentration ; Reaction parameters ; Scanning Electron Microscope ; Smart hydrogels ; Smart materials ; Swelling kinetics ; Switching behaviors ; Taguchi ; Water absorbency ; Fourier transform infrared spectroscopy ; Irradiation ; Optimization ; Scanning electron microscopy ; Sodium chloride ; Starch ; Swelling ; Synthesis (chemical) ; Hydrogels ; Bioactivity ; FTIR spectroscopy ; Gamma ray radiation ; PH ; Starch
  7. Source: Scientia Iranica ; Volume 17, Issue 1 C , June , 2010 , Pages 15-23 ; 10263098 (ISSN)
  8. URL: http://en.journals.sid.ir/ViewPaper.aspx?ID=180033