Synthesis of a co-cross-linked nanocomposite hydrogels from poly(methyl vinyl ether-co-maleic acid)-polyethylene glycol and nanofibrillated cellulose
- 677 Downloads
This study demonstrates the preparation of a renewable and biocompatible co-cross-linked nanocomposite hydrogel from poly(methyl vinyl ether-co-maleic acid), poly(ethylene glycol) and nanofibrillated cellulose (NFC). The cross-linking reaction was favored by the formation of ester linkages as evidenced by Fourier transform infrared spectroscopy. The increase in gel fraction content of the treated NFC varied from 22 to 85 % which exhibited an increase in degree of chemical cross-linking to form a rigid network with the addition of varying amount of NFC (20–60 %). This increase in gel rigidity influenced gel swelling, showing relatively reduced water uptake ability above 40 % NFC. Rheological measurements indicated the formation of gels with superior mechanical properties.
KeywordsNFC PEG PMVEMA Nanocomposite Hydrogels
The authors wish to thank Forest Service R&D special funding on Cellulose Nano-Materials (2012) and Solvay S.A. for financial support.
- Barcus RL, Bjorkquist DW (1991) Absorbent cellulosic fibers modified with maleate-methyl vinyl ether copolymer and polyol. PCT Int Appl WO 9110010(A1):19910711 Google Scholar
- Guilherme MR, Reis AV, Paulino AT, Moia TA, Mattoso LHC, Tambourgi EB (2010) Pectin-based polymer hydrogel as a carrier for release of agricultural nutrients and removal of heavy metals from wastewater. J Appl Polym Sci 117:3146–3154Google Scholar