Novel superabsorbent cellulose‐based hydrogels crosslinked with citric acid

Christian Demitri; Roberta Del Sole; Francesca Scalera; Alessandro Sannino; Giuseppe Vasapollo; Alfonso Maffezzoli; Luigi Ambrosio; Luigi Nicolais

doi:10.1002/app.28660

journal article Aug 20, 2008

Novel superabsorbent cellulose‐based hydrogels crosslinked with citric acid

Roberta Del Sole Francesca Scalera Alessandro Sannino Giuseppe Vasapollo Alfonso Maffezzoli Luigi Ambrosio Luigi Nicolais

Journal of Applied Polymer Science Vol. 110 No. 4 pp. 2453-2460 · Wiley

View at Publisher Save 10.1002/app.28660

Abstract

AbstractThis work is focused on the preparation of new environmentally friendly hydrogels derived from cellulose and hence originating from renewable resources and characterized by biodegradable properties. Two cellulose derivatives, sodium carboxymethylcellulose (CMCNa) and hydroxyethylcellulose (HEC), were used for superabsorbent hydrogel preparation. Citric acid (CA), a crosslinking agent able to overcome toxicity and costs associated with other crosslinking reagents, was selected in a heat activated reaction. Differential scanning calorimeter (DSC), fourier transform infrared spectroscopy (FTIR), and swelling measurements were performed during the reaction progress to investigate the CA reactivity with each of the polymers. Also, CMCNa/HEC polymer mixtures (3/1 w/w) crosslinked with CA were investigated and compared with previous results. Finally, a possible reaction mechanism was proposed. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

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464

Citations

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References

Details

Published: Aug 20, 2008
Vol/Issue: 110(4)
Pages: 2453-2460
License: View

Authors

C

Christian Demitri

Department of Experimental Medicine, University of Salento, Via Monteroni, 73100 Lecce, Italy

R

Roberta Del Sole

Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via per Arnesano Km 1, 73100 Lecce, Italy

Department of Engineering for Innovation, University of Salento, Via Monteroni, 73100 Lecce, Italy

G

Giuseppe Vasapollo

Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via per Arnesano Km 1, 73100 Lecce, Italy

Institute of Polymers, Composites and Biomaterials—National Research Council of Italy (IPCB‐CNR) Naples Italy

L

Luigi Nicolais

Engineering Faculty, University of Naples “Federico II”, Corso Nicolangelo Protopisani 50, 80146 Naples, Italy

Cite This Article

Christian Demitri, Roberta Del Sole, Francesca Scalera, et al. (2008). Novel superabsorbent cellulose‐based hydrogels crosslinked with citric acid. Journal of Applied Polymer Science, 110(4), 2453-2460. https://doi.org/10.1002/app.28660

Novel superabsorbent cellulose‐based hydrogels crosslinked with citric acid

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