Preparation of hybrid hydrogel based on carboxy methyl cellulose modified with poly (acrylic acid-sodium acrylate) latex

Hybrid superabsorbent hydrogel based on carboxymethylcellulose (CMC) was synthesized through modification of CMC with poly (acrylic acid-sodium acrylate) latex. Microgel latex was prepared through inverse emulsion polymerization. Gel strength of hybrid hydrogel is increased through surface crosslinking. Surface crosslinking of hybrid hydrogel was carried out by ethyleneglycoldiglycidylethere (EGDGE) as a crosslinker to increase absorbency under load. Swelling capacity of modified CMC hydrogels in distilled water is up to 101 g/g. Free saline absorbency and absorbency under load of CMC modified gels were up to 40.4 and 14.4 g/g respectively

Keywords:

acrylic acid , Carboxy methyl cellulose , hydrogel , surface crosslinking