The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Swelling Behaviors of pH- and Salt-Responsive Cellulose-Based Hydrogels
Abstract
Ampholytic hydrogels with pH and salt responsive properties have been synthesized by cross-linking quaternized cellulose (QC) and carboxymethyl cellulose (CMC) with epichlorohydrin (ECH) in NaOH aqueous solution. The swelling behaviors of the QC/CMC hydrogels were studied as a function of the polymer composition, pH, and salt concentration. The equilibrium swelling ratio of the hydrogel in ultrapure water strongly depended on the composition, and increased dramatically from 8.6 to 498 g/g with the change of the weight ratio of QC to CMC from 3:1 to 1:3 (w/w). The hydrogel (Gel32) consisted of QC and CMC in the ratio of 3:2 (w/w) had the minimum swelling ratio, and it was electrically neutral. The results from ζ-potential experiments were in good agreement with the theoretically calculated stoichiometry for balanced charge, confirming that the weight ratio of QC and CMC was 1.5, corresponding to Gel32. Furthermore, all hydrogels exhibited excellent pH sensitivity in the range of pH from 1 to 13 and shrunk significantly at pH 12 on the whole. The hydrogels displayed smart swelling behaviors in NaCl, CaCl 2, and FeCl 3 aqueous solutions. The results revealed that CMC mainly contributed to increasing the swelling as a result of strong water adsorption, whereas QC played a role in the controlling of the charges in the QC/CMC system, leading to the pH sensitivity.
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Cites
Emerging applications of stimuli-responsive polymer materials
Stuart, M. A. C., Huck, W. T. S., Genzer, J., Müller, M., Ober, C., Stamm, M., Sukhorukov, G. B., Szleifer, I., Tsukruk, V. V., Urban, M., et al. (2010) · Nature Materials · doi:10.1038/nmat2614 · Cited by 5,707
Environment-sensitive hydrogels for drug delivery
Qiu, Y., & Park, K. (2001) · Advanced Drug Delivery Reviews · doi:10.1016/s0169-409x(01)00203-4 · Cited by 3,911
Polymerized colloidal crystal hydrogel films as intelligent chemical sensing materials
Holtz, J. H., & Asher, S. A. (1997) · Nature · doi:10.1038/39834 · Cited by 2,004
Volume-phase transitions of ionized N-isopropylacrylamide gels
Hirotsu, S., Hirokawa, Y., & Tanaka, T. (1987) · The Journal of Chemical Physics · doi:10.1063/1.453267 · Cited by 856
Superabsorbent hydrogels based on cellulose for smart swelling and controllable delivery
Chang, C., Duan, B., Cai, J., & Zhang, L. (2010) · European Polymer Journal · doi:10.1016/j.eurpolymj.2009.04.033 · Cited by 795
Self-citationSelf-Repairing Oxetane-Substituted Chitosan Polyurethane Networks
Ghosh, B., & Urban, M. W. (2009) · Science · doi:10.1126/science.1167391 · Cited by 713
Preparation, structure and diffusional behavior of hydrogels in controlled release
Peppas, N. A., & Khare, A. R. (1993) · Advanced Drug Delivery Reviews · doi:10.1016/0169-409x(93)90025-y · Cited by 665
Stimuli-responsive hydrogel thin films
Tokarev, I., & Minko, S. (2009) · Soft Matter · doi:10.1039/b813827c · Cited by 579
Reversible Switching of Hydrogel-Actuated Nanostructures into Complex Micropatterns
Sidorenko, A., Krupenkin, T., Taylor, A., Fratzl, P., & Aizenberg, J. (2007) · Science · doi:10.1126/science.1135516 · Cited by 562
Dynamic Self-Assembly Induced Rapid Dissolution of Cellulose at Low Temperatures
Cai, J., Zhang, L., Liu, S., Liu, Y., Xu, X., Chen, X., Chu, B., Guo, X., Xu, J., Cheng, H., et al. (2008) · Macromolecules · doi:10.1021/ma801110g · Cited by 433
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Cited by
Preparation of cellulose-based hydrogel: a review
Zainal, S. H., Mohd, N. H., Suhaili, N., Anuar, F. H., Lazim, A. M., & Othaman, R. (2021) · Journal of Materials Research and Technology · doi:10.1016/j.jmrt.2020.12.012 · Cited by 573
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pH ‐sensitive polymers: Classification and some fine potential applications
Ofridam, F., Tarhini, M., Lebaz, N., Gagnière, É., Mangin, D., & Elaissari, A. (2021) · Polymers for Advanced Technologies · doi:10.1002/pat.5230 · Cited by 286
Review of Stimuli-Responsive Polymers in Drug Delivery and Textile Application
CHATTERJEE, S., & Chi-leung HUI, P. (2019) · Molecules · doi:10.3390/molecules24142547 · Cited by 201
“These cellulose-based hydrogels are reported to have various biomedical applications including drug delivery and tissue engineering [75].”
BackgroundWang, X.-Y., Pei, Y., Xie, M., Jin, Z.-H., Xiao, Y.-S., Wang, Y., Zhang, L.-N., Li, Y., & Huang, W.-H. (2015) · Lab on a Chip · doi:10.1039/c4lc00973h · Cited by 77
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Metadata
- Authors
- Chang, C., He, M., Zhou, J., & Zhang, L.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-02-23
- Volume
- 44
- Issue
- 6
- Pages
- 1642-1648
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2089081653
- Cited by
- 300
- References
- 36
- FWCI
- 5.26
- Type
- journal article
- Language
- en
- Open access
- closed
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