TY  - JOUR
VL  - 15
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85152633029&doi=10.3390%2fpolym15061471&partnerID=40&md5=49ad4f8734a3428533612e7cfd9f9a11
N2  - The purpose of this study is to assess waterâ??polymer interaction in synthesized starch-derived superabsorbent polymer (S-SAP) for the treatment of solid waste sludge. While S-SAP for solid waste sludge treatment is still rare, it offers a lower cost for the safe disposal of sludge into the environment and recycling of treated solid as crop fertilizer. For that to be possible, the waterâ??polymer interaction on S-SAP must first be fully comprehended. In this study, the S-SAP was prepared through graft polymerization of poly (methacrylic acid-co-sodium methacrylate) on the starch backbone. By analyzing the amylose unit, it was possible to avoid the complexity of polymer networks when considering S-SAP using molecular dynamics (MD) simulations and density functional theory (DFT). Through the simulations, formation of hydrogen bonding between starch and water on the H06 of amylose was assessed for its flexibility and less steric hindrance. Meanwhile, water penetration into S-SAP was recorded by the specific radial distribution function (RDF) of atomâ??molecule interaction in the amylose. The experimental evaluation of S-SAP correlated with high water capacity by measuring up to 500 of distilled water within 80 min and more than 195 of the water from solid waste sludge for 7 days. In addition, the S-SAP swelling showed a notable performance of a 77 g/g swelling ratio within 160 min, while a water retention test showed that S-SAP was capable of retaining more than 50 of the absorbed water within 5 h of heating at 60 °C. The water retention of S-SAP adheres to pseudo-second-order kinetics for chemisorption reactions. Therefore, the prepared S-SAP might have potential applications as a natural superabsorbent, especially for the development of sludge water removal technology. © 2023 by the authors.
ID  - scholars18721
AV  - none
N1  - cited By 2
Y1  - 2023///
TI  - Starch-Derived Superabsorbent Polymer in Remediation of Solid Waste Sludge Based on Waterâ??Polymer Interaction
KW  - Biopolymers; Cyclodextrins; Density functional theory; Design for testability; Distribution functions; Molecular dynamics; Reaction kinetics; Solid wastes; Starch; Wastewater treatment
KW  -  Polymer interactions; Sludge treatment; Solid waste sludge treatment; Starch biopolymers; Superabsorbent polymer; Synthesised; Waste sludge; Water absorbency; Water retention; Waterâ??polymer interaction
KW  -  Hydrogen bonds
JF  - Polymers
IS  - 6
A1  - Matmin, J.
A1  - Ibrahim, S.I.
A1  - Mohd Hatta, M.H.
A1  - Ricky Marzuki, R.
A1  - Jumbri, K.
A1  - Nik Malek, N.A.N.
ER  -