2,3-Dimethylacrylic acid- (2-Acrylamido-2-methyl-1-propanesulfonic acid) superabsorbent hydrogel

Published: 13 April 2023| Version 1 | DOI: 10.17632/6f2cgkv86x.1


Gamma radiation induced 2,3-Dimethylacrylic acid- (2-Acrylamido-2-methyl-1-propane sulfonic acid) superabsorbent hydrogel: Synthesis and Characterization. Equilibrium swelling and Characterization (FTIR, XRD, DSC, TGA, SEM-EDS, NMR) data. Abstract Gamma radiation technique for the preparation of pure hydrogels is getting popularity worldwide. The present work mainly focuses on the preparation and characterization of 2,3-Dimethylacrylic acid-(2-Acrylamido-2-methyl-1-propane sulfonic acid) (DMAA-AMPSA) hydrogels by applying gamma radiation and optimization of the proper dose. To prepare DMAA-AMPSA hydrogel, different doses ranging from 2 kGy to 30 kGy were imparted on the blend aqueous solution of the monomers. The equilibrium swelling increases with increasing radiation dose followed by decreasing after reaching a certain level and the highest result was found to be 26324.9 % at 10 kGy. Fourier Transform Infra-red (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy confirmed the formation of co-polymer by showing the functional groups and proton environment of the gel. Differential Scanning Calorimetry (DSC) and Thermogravimetry Analysis (TGA) revealed the thermal stability of the gel. The surface morphology and constitutional elements were analyzed and confirmed by Scanning Electron Microscopy (SEM) equipped with Energy Dispersive Spectroscopy (EDS). Finally, it can be stated that hydrogels can be usable in metal adsorption, drug delivery, and other relevant fields.



Gachon University