Novel biodegradable hydrogel based on natural polymers: Synthesis, characterization, swelling/reswelling and biodegradability
By Warunee Tanan, Jate Panichpakdee, Sayant Saengsuwan. European Polymer Journal, 2019
247 citations recorded by the source corpus.
Abstract In order to reduce the production costs of hydrogel and decrease the negative impact on the environment, a new low-cost and eco-friendly semi-interpenetrating polymer network (semi-IPN) hydrogels of cassava starch-g-polyacrylic acid/natural rubber/polyvinyl alcohol blends (CSt-g-PAA/NR/PVA) was prepared. The hydrogel was synthesized by aqueous solution polymerization method in the presence of initiator ammonium persulfate (APS) and N,N’-methylene-bis-acrylamide (MBA) as a crosslinker. A reaction mechanism for synthesis of CSt-g-PAA/NR/PVA semi-IPN hydrogels was proposed. Factors affecting the swelling capacity, such as CSt, AA, APS and MBA contents were evaluated and optimized. The sample prepared under optimized conditions had a water absorbency of 794% in distilled water and 244% in 0.9 wt% NaCl solution. It also exhibited an excellent water retention with lower decreasing rate and were highly sensitive to the salt concentration, cation type, pH and reswelling time. The semi-IPN hydrogel demonstrated a good biodegradation with a rate of 0.626 wt%/day. It is believed that the obtained CSt-g-PAA/NR/PVA could have potential applications in agricultural areas because of their good water absorption, excellent retention capacities, high reswelling capability, and cost-effective and ecofriendly preparation.
Subfields: Biomaterials, Mechanical Engineering, Molecular Medicine
View Paper: https://www.semanticscholar.org/paper/736d622e6289f77906c68f31bb93445529312223
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Mechanical Engineering
Citations in the corpus
- Fundamental Concepts of Hydrogels: Synthesis, Properties, and Their Applications (2020, background): “The swelling properties were highly sensitive to the salt and pH (Figure 16) [162].”