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Due to the widespread usage of carbohydrate polymers in a variety of areas, the present study is undertaken to develop novel graft copolymers of hydroxyethylcellulose and acrylamide (HEC-g-AAm). Grafting reaction was confirmed by Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). The graft copolymers were blended in different ratios with a natural polymer,...
A pH-sensitive semi-interpenetrating polymer network (semi-IPN) superabsorbent hydrogel composed of sodium alginate-g-poly(sodium acrylate) (NaAlg-g-PNaA) network and linear polyvinylpyrrolidone (PVP) was prepared by free-radical solution polymerization in the presence of initiator ammonium persulfate (APS) and crosslinker N,N-methylene-bis-acrylamide (MBA). FTIR results revealed that PNaA had been...
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