eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2014-04-28 11 1 6454 article Sahar Mirdarikvande 1 Hossein Sadeghi 1 Anahita Godarzi 1 Maleyhe Alahyari 1 Hadis Shasavari 1 Farnosha Khani 1 Department of Chemistry, Science Faculty, Islamic Azad University, Khorramabad Branch, Khorramabad, Iran. To following synthesis of a novel superabsorbent hydrogel based on alginate, the swelling of superabsorbing hydrogels was examined in solutions with pH values ranging between 1.0 and 13.0. It showed a reversible pH-responsive behavior at pHs 2.0 and 8.0. The swelling measurements of the hydrogels were also conducted in aqueous solutions of LiCl, NaCl, KCl, MgCl2 , CaCl2 , SrCl2 , BaCl2 , and AlCl3 . Results indicated that the swelling capacity decreased with an increase in the ionic strength of the swelling medium. Due to the high swelling capacity in salt solutions, the hydrogels may be referred to as anti-salt superabsrbents. https://www.biotech-asia.org/vol11no1/effect-of-ph-and-salinity-onto-swelling-properties-of-hydrogels-based-on-h-alginate-g-polyamps/ Alginate; hydrogel; pH-responsive; anti-salt