Kushairi Mohd SallehSarani ZakariaMohd Shaiful SajabSinyee GanHatika Kaco2024-05-282024-05-28201930/12/20190141-81302241-1710.1016/j.ijbiomac.2019.03.028https://www.sciencedirect.com/science/article/abs/pii/S0141813018334032?via%3Dihubhttps://oarep.usim.edu.my/handle/123456789/7124International Journal of Biological Macromolecules Volume 131, 15 June 2019, Pages 50-59A green regenerated superabsorbent hydrogel was fabricated with mixtures of dissolved oil palm empty fruit bunch (EFB) cellulose and sodium carboxymethylcellulose (NaCMC) in NaOH/urea system. The formation of hydrogel was aided with epichlorohydrin (ECH) as a crosslinker. The resultant regenerated hydrogel was able to swell >80,000% depending on the NaCMC concentrations. The hydrogel absorbed water rapidly upon exposure to water up to 48 h and gradually declined after 72 h. The crosslinked of covalent bond of Csingle bondOsingle bondC between dissolved EFB cellulose (EFBC) with NaCMC was confirmed with Attenuated total reflectance Fourier transform infrared (ATR-FT-IR) spectroscopy. Crystallinity and thermal stability of the hydrogel samples were depended on the concentrations of NaCMC, crosslinking, and swelling process. The strength and stability of crosslinked network was studied by examining the gel fraction of hydrogel. This study explored the swelling ability and probable influenced factors towards physical and chemical properties of hydrogel.enOsmotic pressurePre-coolWater absorptionPresentation50591311