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New protein-Based hydrogel with superabsorbing properties / A. Pourjavadi in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9206–9213 Titre : New protein-Based hydrogel with superabsorbing properties : effect of monomer ratio on swelling behavior and kinetics Type de document : texte imprimé Auteurs : A. Pourjavadi, Auteur ; H. Salimi, Auteur Année de publication : 2009 Article en page(s) : p. 9206–9213 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : New  Protein-Based  Hydrogel  Superabsorbing  Properties  Monomer  Ratio  on  Swelling  Behavior  and  Kinetics Résumé : In this paper we report an efficient synthesis of hydrolyzed collagen-g-poly(sodium acrylate-co-2-hydroxyethyl acrylate) hydrogel through chemical cross-linking by graft copolymerization of these two monomers onto the protein backbone in the presence of a cross-linker. Infrared spectroscopy and thermogravimetric analysis (TGA) were carried out to confirm the chemical structure of the hydrogel. Moreover, morphology of the samples was examined by scanning electron microscopy (SEM). To investigate the effect of monomer ratio on swelling behavior in various media three hydrogels with different acrylic acid/2-hydroxyethyl acrylate (AA/HEA) weight ratios were synthesized and swelling capacity was assessed. Moreover, the swelling of hydrogels were measured in solutions with pH ranging 1 to 12, and additionally, the swelling kinetics of the synthesized hydrogels were studied. The absorbency under load (AUL) of hydrogel was also investigated by using an AUL tester at various applied pressures. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8002478 [article] New protein-Based hydrogel with superabsorbing properties : effect of monomer ratio on swelling behavior and kinetics [texte imprimé] / A. Pourjavadi, Auteur ; H. Salimi, Auteur . - 2009 . - p. 9206–9213. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9206–9213 Mots-clés : New  Protein-Based  Hydrogel  Superabsorbing  Properties  Monomer  Ratio  on  Swelling  Behavior  and  Kinetics Résumé : In this paper we report an efficient synthesis of hydrolyzed collagen-g-poly(sodium acrylate-co-2-hydroxyethyl acrylate) hydrogel through chemical cross-linking by graft copolymerization of these two monomers onto the protein backbone in the presence of a cross-linker. Infrared spectroscopy and thermogravimetric analysis (TGA) were carried out to confirm the chemical structure of the hydrogel. Moreover, morphology of the samples was examined by scanning electron microscopy (SEM). To investigate the effect of monomer ratio on swelling behavior in various media three hydrogels with different acrylic acid/2-hydroxyethyl acrylate (AA/HEA) weight ratios were synthesized and swelling capacity was assessed. Moreover, the swelling of hydrogels were measured in solutions with pH ranging 1 to 12, and additionally, the swelling kinetics of the synthesized hydrogels were studied. The absorbency under load (AUL) of hydrogel was also investigated by using an AUL tester at various applied pressures. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8002478