Synthesis and property of superabsorbent polymer based on cellulose grafted 2-acrylamido-2-methyl-1-propanesulfonic acid

Yan Hao; Jing Qu; Lei Tan; Zunyi Liu; Yicheng Wang; Tingrui Lin; Hui Yang; Jing Peng; Maolin Zhai

doi:10.1016/j.ijbiomac.2023.123643

Synthesis and property of superabsorbent polymer based on cellulose grafted 2-acrylamido-2-methyl-1-propanesulfonic acid

Int J Biol Macromol. 2023 Apr 1:233:123643. doi: 10.1016/j.ijbiomac.2023.123643. Epub 2023 Feb 11.

Authors

Yan Hao¹, Jing Qu², Lei Tan², Zunyi Liu², Yicheng Wang³, Tingrui Lin⁴, Hui Yang², Jing Peng³, Maolin Zhai⁵

Affiliations

¹ Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China. Electronic address: haoyannk@163.com.
² Institute of Applied Chemistry School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, PR China.
³ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
⁴ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China; Fujian Key Laboratory of Architectural Coating, Skshu Paint Co., Ltd., Putian, Fujian 351100, PR China.
⁵ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China. Electronic address: mlzhai@pku.edu.cn.

PMID: 36775220
DOI: 10.1016/j.ijbiomac.2023.123643

Abstract

An eco-friendly superabsorbent polymer (SAP) was prepared by grafting 2-acrylamido-2-methyl-1-propanesulfonic acid onto microcrystalline cellulose in lithium chloride/N, N-dimethylacetamide system. The synthesized SAP (cellulose-g-PAMPS) was characterized by FTIR, TGA, SEM, ¹H NMR, ¹³C NMR and XRD. The water absorption equilibrium of cellulose-g-PAMPS could be achieved within 10 min in distilled water. Moreover, the maximum water absorption capacities of cellulose-g-PAMPS in distilled water, 0.9 wt% NaCl solution and 3.2 wt% Na₂CO₃ solution were 648.9, 298.4 and 207.3 g·g^-1, respectively. The water absorption behavior of cellulose-g-PAMPS was interpreted by the pseudo-second-order model. Furthermore, cellulose-g-PAMPS could be used in some extreme conditions due to its high acid and alkali resistance. The water retention rate of cellulose-g-PAMPS could be maintained above 90 % at 25 °C for 6 h. As a consequence, the synthesized SAP can be applied to increase the plant growth and survival time under drought conditions, even under saline alkali conditions.

Keywords: 2-Acrylamido-2-methyl-1-propanesulfonic acid; Lithium chloride/N; Microcrystalline cellulose; N-dimethylacetamide system; Superabsorbent polymer; Water absorption and retention properties.

MeSH terms

Cellulose / chemistry
Pathogen-Associated Molecular Pattern Molecules*
Polymers* / chemistry
Water / chemistry

Substances

2-acrylamido-2-methylpropanesulfonate
Polymers
Pathogen-Associated Molecular Pattern Molecules
Cellulose
Water