Choi, Hyesun Park, Jongshin Lee, Jiwon 2024-01-19T12:00:12Z 2024-01-19T12:00:12Z 2022-11-02 2022-06 2637-6105 https://pubs.kist.re.kr/handle/201004/115094 In this study, an environmentally friendly superabsorbent hydrogel, produced from the cross-linked poly(itaconic acid) (PIA) superabsorbent polymer (c-PIAS) based on itaconic acid (IA), was prepared using the radical polymerization method with potassium persulfate as an initiator and poly(ethylene glycol) diacrylate as a cross-linking agent. IA, which is water-soluble and has excellent biocompatibility, was selected as the monomer because it has attracted considerable attention as a substitute for petroleum-based polymers. The chemical structure and rheological properties were investigated based on the degree of cross-linking. The bio-based c-PIAS showed the highest water absorption capacity of 370.7 g/g and an exceptional reswelling capacity of 1713.8 g/g. These absorption properties were analyzed by applying them to swelling kinetics (i.e., pseudo-second-order kinetics and Fickian diffusion), which revealed an excellent relationship. In addition, c-PIAS demonstrated excellent low-temperature maintenance capability, indicating promising applicability for producing commercial ice pack. Therefore, the bio-based c-PIAS has the application potential for sustainable chemical industry including hygiene products and environmental packaging. English AMER CHEMICAL SOC Sustainable Bio-Based Superabsorbent Polymer: Poly(itaconic acid) with Superior Swelling Properties Article 10.1021/acsapm.2c00021 1 ACS Applied Polymer Materials, v.4, no.6, pp.4098 - 4108 ACS Applied Polymer Materials 4 6 4098 4108 N scie scopus 000810547500001 Materials Science, Multidisciplinary Polymer Science Materials Science Polymer Science Article HYDROGEL WATER ABSORPTION FABRICATION ABSORBENCY MECHANISM DYNAMICS KINETICS REMOVAL ORDER superabsorbent itaconic acid sustainable bio-based material polymer hydrogel absorption