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Irradiation synthesis of biopolymer-based superabsorbent hydrogel: optimization using the taguchi method and investigation of its swelling behavior

Rezanejade Bardajee, G ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1002/adv.20154
  3. Publisher: 2009
  4. Abstract:
  5. In this report, the synthesis of a novel superabsorbent hydrogel via γ-irradiation graft copolymerization of acrylamide onto sodium alginate and kappa-carrageenan hybrid backbones in a homogeneous solution is described. The Taguchi method was used as a powerful experimental design tool for synthesis optimization. A series of superabsorbent hydrogels was synthesized by proposed conditions of Qualitek-4 software. Considering the results of nine trials according to analysis of variance, optimum conditions were proposed. The swelling behavior of optimum superabsorbent hydrogels was studied in various solutions, with pH values ranging from 1 to 13. In addition, swelling kinetics, swelling in various organic solvents, the absorbency under load, and on-off switching behavior were investigated. Also, hydrogel formation was confirmed by Fourier transform infrared spectroscopy. Surface morphology of the synthesized hydrogels was assessed by scanning electron microscopy. © 2009 Wiley Periodicals, Inc
  6. Keywords:
  7. Acrylamides ; Biodegradable ; Experimental design ; Graft copolymerization ; Homogeneous solutions ; Hydrogel formation ; Kappa carrageenan ; Optimum conditions ; pH value ; Qualitek ; Sodium alginates ; Superabsorbent hydrogel ; Swelling behavior ; Swelling kinetics ; Switching behaviors ; Synthesis optimization ; Acrylic monomers ; Amides ; Copolymerization ; Fourier transform infrared spectroscopy ; Grafting (chemical) ; Irradiation ; Organic solvents ; Polyvinyl alcohols ; Regression analysis ; Scanning electron microscopy ; Sodium ; Spectroscopic analysis ; Spectroscopy ; Swelling ; Synthesis (chemical) ; Taguchi methods ; Hydrogels
  8. Source: Advances in Polymer Technology ; Volume 28, Issue 2 , 2009 , Pages 131-140 ; 07306679 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/adv.20154