Sharif University of Technology Scientia Iranica 1026-3098 17 1 2010 06 01 y-Irradiation Synthesis of a Smart Hydrogel: Optimization Using Taguchi Method and Investigation of Its Swelling Behavior 3304 EN A. Pourjavadi Department of Chemistry,Sharif University of Technology R. Soleyman Department of Chemistry,Sharif University of Technology Gh.R. Bardajee Department of Chemistry,Sharif University of Technology F. Seidi Department of Chemistry,Sharif University of Technology Journal Article 2010 07 18 In the current work, synthesis of an environmental-sensitive superabsorbent hydrogel using -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 -irradiation time) aecting 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 conrming the structure of the nal 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-o switching behaviors of entitled smart hydrogel make it a good candidate for consideration as a potential carrier for bioactive agents like drugs. https://scientiairanica.sharif.edu/article_3304_0e9d935f7e3f2b502450c049ddbc7c92.pdf