Pulat, MehlikaUgurlu, Nilguen2023-08-222023-08-2220161539-445Xhttp://hdl.handle.net/11727/10390In this study, interpenetrating polymer network (IPN) hydrogel systems including maleic acid (MA) were constituted to improve the solubility of phosphate fertilizers. A series of full and semi-IPN hydrogels were prepared from various gelatin/polyacrylamide mixtures by using two different cross-linkers. The effects of polymer composition on the morphological structures and swelling behaviors of the hydrogels were investigated. The swelling values of all hydrogels were found to be in between 435% and 830%. MA release from load0ed hydrogels was followed and it was determined that MA-loaded hydrogels efficiently decreased pH and improved the solubility of Ca-3(PO4)(2) in releasing medium.enginfo:eu-repo/semantics/closedAccessControlled releasegelatininterpenetrating network hydrogelsmaleic acidpolyacrylamideArticle1442172270003829648000012-s2.0-84978701058