Swelling behavior and mechanical properties of Chitosan-Poly(N-vinyl-pyrrolidone) hydrogels
-
Emil Budianto
and
Annissa Amalia
Abstract
In this research, three modified chitosan-based hydrogels are synthesized, i.e., a crosslinked chitosan hydrogel and semi- and fully-interpenetrating polymer network (IPN) chitosan hydrogels fabricated using poly(N-vinyl-pyrrolidone). A non-modified chitosan hydrogel was also synthesized as a control. These samples were compared regarding their swelling behavior and mechanical properties. The hydrogels were characterized by Fourier Transform Infrared (FTIR) analysis and microscopy observations. The effect of crosslinking on the swelling capacity and on the swelling kinetics were evaluated in distilled water, simulated gastric fluid (SGF), and simulated intestinal fluid (SIF) at 37 °C, and the data were interpreted using various kinetic models. Finally, the mechanical properties were evaluated based on the tensile strength using a universal tensile testing machine. The results revealed that the swelling process conformed to the Schott model (pseudo-second-order kinetics), with Fickian diffusion as the diffusion mechanism type. The hydrogels all showed similar trends in their swelling kinetics. However, the full-IPN hydrogel exhibited the lowest equilibrium swelling capacity and the highest swelling rate. The mechanical test results indicate that the crosslinking model affects the resulting tensile strength.
Funding source: Universitas Indonesia
Award Identifier / Grant number: NKB-0026/UN2.R3.1/HKP.05.00/2019
Acknowledgments
We would like to thank the Department of Chemistry and the Biomedical Engineering Laboratory of Universitas Indonesia for their support and for the access to their instrumental facilities.
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was supported by the PIT (Publikasi Internasional Terindeks) 9 2019 of Universitas Indonesia [grant number NKB-0026/UN2.R3.1/HKP.05.00/2019].
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Material properties
- Effects of ethanol content on the properties of silicone rubber foam
- Swelling behavior and mechanical properties of Chitosan-Poly(N-vinyl-pyrrolidone) hydrogels
- Microcellular foaming behavior of ether- and ester-based TPUs blown with supercritical CO2
- Influence of chain interaction and ordered structures in polymer dispersed liquid crystalline membranes on thermal conductivity
- Experimental investigations on compressive, impact and prediction of stress-strain of fly ash-geopolymer and portland cement concrete
- Preparation and assembly
- Fabrication of poly (1, 8-octanediol-co-Pluronic F127 citrate)/chitin nanofibril/bioactive glass (POFC/ChiNF/BG) porous scaffold via directional-freeze-casting
- Engineering and processing
- Continuous reactors of frontal polymerization in flow for the synthesis of polyacrylamide hydrogels with prescribed properties
- Effect of slot end faces on the three-dimensional airflow field from the melt-blowing die
- Experimental and numerical study of the crushing behavior of pultruded composite tube structure
