Multi-responsive hydrogels based on N-isopropylacrylamide and sodium alginate
Dumitriu, R. , Mitchell, G. and Vasile, C. (2011) Multi-responsive hydrogels based on N-isopropylacrylamide and sodium alginate. Polymer International, 60 (2). pp. 222-233. ISSN 0959-8103
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To link to this article DOI: 10.1002/pi.2929
Hydrogels consisting of sodium alginate and N-isopropylacrylamide covalently crosslinked with N,N′-methylenebisacrylamide were prepared. The mixed-interpenetrated networks obtained were characterized using elemental analysis, Fourier transform infrared and Raman spectroscopy, swelling measurements and environmental scanning electron microscopy. The thermo- and pH-responsive properties of these hydrogels were evidenced by their swelling behaviour, which depended also on the amount of crosslinking agent and hydrogel composition.
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