Network structure studies on γ–irradiated collagen–PVP superabsorbent hydrogels

Collagen–polyvinylpyrrolidone (PVP) superabsorbent hydrogels were synthesized by γ– irradiation in the absence of oxygen, using high molecular weight PVP and acidic collagen Type I. Sol–gel analysis and swelling experiments were performed in order to determine the gel fraction, network parameters, the yield of cross–linking, respectively scission, as well as to establish the diffusion characteristics of water. Rheological experiments and...