Cellulose nanocrystal-graft-polyacrylic acid /polyvinyl alcohol hydrogels: Physicochemical properties and swelling behavior

Nurul Husna, Halim and Lau, Kam Sheng and Nur Fathihah, Jafri and Nursyamimi, Ahmad Ghazali and Rasidi, Roslan and Sarani, Zakaria and Chin, Siew Xian and Chia, Chin Hua (2024) Cellulose nanocrystal-graft-polyacrylic acid /polyvinyl alcohol hydrogels: Physicochemical properties and swelling behavior. Cellulose, 31 (10). pp. 6263-6280. ISSN 0969-0239. (Published)

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DOI/Official URL: https://doi.org/10.1007/s10570-024-05968-9

Abstract

This research describes the swelling behavior of cellulose nanocrystal-graft-polyacrylic acid/polyvinyl alcohol (CNC-g-PAA/PVA) hydrogels produced via a semi-interpenetrating network (semi-IPN) approach. To improve the dispersion of cellulose nanocrystals (CNCs) in the hydrogel system, the CNCs were embedded into the PAA polymer structure via grafting with AA monomers and polymerization processes. The produced CNC-g-PAA was further developed into a semi-IPN system with polyvinyl alcohol (PVA) to study the effect of CNC content on the water absorption and retention properties. The physical and chemical properties of the semi-IPN hydrogels were characterized using Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), and rheometer. The data revealed that an increased CNC content significantly improved the swelling ratio and swelling kinetics of the hydrogels at room temperature. Moreover, a higher pH and temperature also enhanced the swelling performance of the hydrogels. These improvements demonstrate the potential utility of CNC-g-PAA/PVA hydrogels in agricultural and horticultural applications.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Cellulose; Filler; Modification; Swelling
Subjects:	Q Science > QD Chemistry T Technology > TP Chemical technology
Faculty/Division:	Faculty of Industrial Sciences And Technology Centre for Advanced Intelligent Materials
Depositing User:	Mrs. Nurul Hamira Abd Razak
Date Deposited:	03 Jul 2025 01:01
Last Modified:	03 Jul 2025 01:01
URI:	http://umpir.ump.edu.my/id/eprint/44996
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