Preparation of Superabsorbent Composites by Graft Copolymerization of Acrylamide onto Native CelluloseReport as inadecuate




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Native cellulose NC was used as raw material for synthesizing a novel native celluloseg- polyacrylamide NC-PAN superabsorbent composite by graft polymerization with native cellulose powder and acrylamide in aqueous solution, using, N,N′-methylenebisacrylam- ide as a crosslinker and ammonium persulfate as an initiator. The water absorbency of superabs- orbent composite is 500 g g-1 in distilled water,which was characterized by Fourier transform infrared FTIR pectroscopy, scanning electron microscopy SEM and thermogravimetric analysis TGA. The results of FTIR spectra showed that the product was a composite based on PAN incorporating with NC. The introduced NC enhanced thermal stability and carbon-residue of the PAN superabsorbent and formed a loose and more porous surface.

KEYWORDS

native cellulose; polyacrylamide; superabsorbent composite

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Author: Zhe Zhang, Zhong-chao Wang, Ying Chang, Zhan-cui Wu, Jian Xu, Zi-qiang Lei

Source: http://www.scirp.org/



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