Synthesis and Properties of Feather Keratin-Based Superabsorbent Hydrogels

被引:24
|
作者
Wattie, Bryan [1 ]
Dumont, Marie-Josee [1 ]
Lefsrud, Mark [1 ]
机构
[1] McGill Univ, Dept Bioresource Engn, 21111 Lakeshore Rd, Ste Anne De Bellevue, PQ H9X 3V9, Canada
关键词
Hydrogels; Keratin; Superabsorbent polymer; Characterization; SWELLING BEHAVIOR; COMPOSITES; POLYMER; WATER; KINETICS; RELEASE; SYSTEMS; WASTE; ACID);
D O I
10.1007/s12649-016-9773-0
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The present work reports significant improvement in the performance of keratin based hydrogels. These hydrogels were synthesized by graft copolymerization of acrylic acid monomers on the hydrolyzed keratin proteins' backbones in the presence of a crosslinker (N,N-methylenebis (acrylamide)) and initiators (sodium bisulfite and potassium persulfate). The grafting was confirmed by means of Fourier transform infrared spectroscopy. The contributions of the crosslinker, initiator and neutralization degree to the hydrogels were investigated through differential scanning calorimetry, swelling tests, and scanning electron microscopy. The highest equilibrium swelling of hydrogel in distilled water reached 501 g/g of hydrogel in 48 h. The swelling properties of the optimized hydrogel formulation were also studied at various pH and saline concentrations. [GRAPHICS]
引用
收藏
页码:391 / 400
页数:10
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