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Title: Nanoporous sodium carboxymethyl cellulose-g-poly (Sodium acrylate)/fecl3 hydrogel beads: Synthesis and characterization
Authors: Kumar B.
Priyadarshi R.
Deeba F.
Kulshreshtha A.
Gaikwad, Kirtiraj K.
Kim J.
Kumar A.
Negi, Yuvraj Singh
Published in: Gels
Abstract: Novel sodium carboxymethyl cellulose-g-poly (sodium acrylate)/Ferric chloride (CMC-g-PNaA/FeCl ) nanoporous hydrogel beads were prepared based on the ionic cross-linking between CMC-g-PNaA and FeCl . The structure of CMC and CMC-g-PNaA were elucidated by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy, and the elemental composition was analyzed by energy dispersive X-ray analysis (EDX). The physicochemical properties of the CMC-g-PNaA/FeCl hydrogel beads were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM) and thermogravimetric analysis (TGA). The swelling percentage of hydrogel beads was studied at different time periods. The obtained CMC-g-PNaA/FeCl hydrogel beads exhibited a higher nanoporous morphology than those of CMC-g-PNaA and CMC beads. Furthermore, an AFM image of the CMC-g-PNaA/FeCl beads shows granule type topology. Compared to the CMC-g-PNaA (189 C), CMC-g-PNaA/FeCl hydrogel beads exhibited improvement in thermal stability (199 C). Furthermore, CMC-g-PNaA/FeCl hydrogel beads depicted a higher swelling percentage capacity of around 1452%, as compared to CMC-g-PNaA (1096%). Moreover, this strategy with preliminary results could be useful for the development of polysaccharide-based hybrid hydrogel beads for various potential applications. 
Citation: Gels(2020), 6(4): 1-11
Issue Date: 2020
Publisher: MDPI AG
Keywords: Cross-linking
Nanoporous beads
Poly(sodium acrylate)
Sodium carboxymethyl cellulose
Thermal analysis
ISSN: 23102861
Author Scopus IDs: 57217717654
Author Affiliations: Kumar, B., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India, Creative Research Center for Nanocellulose Future Composites, Department of Mechanical Engineering, Inha University, Inharo, Michuhol
Funding Details: .Indian Institute of Technology Roorkee, IITR.Acknowledgments: Authors would like to acknowledge the IIT Roorkee for the financial support and facilities in carrying out this research work.
Corresponding Author: Kumar, A.; School of Chemical Engineering, South Korea; email: Negi, Y.S.; Department of Polymer and Process Engineering, India; email:
Appears in Collections:Journal Publications [PE]
Journal Publications [PT]

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