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Cryogels / Ashok Kumar in Materials today, Vol. 13 N° 11 (Novembre 2010) 

Public ISBD [article]  in Materials today > Vol. 13 N° 11 (Novembre 2010) . - pp. 42-44 Titre : Cryogels : freezing unveiled by thawing Type de document : texte imprimé Auteurs : Ashok Kumar, Auteur ; Ruchi Mishra, Auteur ; Yvonne Reinwald, Auteur Année de publication : 2011 Article en page(s) : pp. 42-44 Note générale : Ingénierie Langues : Anglais (eng) Mots-clés : Cryogels  Ice-crystal  formation  Polymerization  Gel  materials Index. décimale : 620 Essais des matériaux. Matériaux commerciaux. Station génératrice d'énergie. Economie de l'énergie Résumé : Cryogels are interconnected supermacroporous gels prepared at sub-zero temperatures having applications in various research fields. The process of cryogelation is ideally thought to take place via following steps: phase separation with ice-crystal formation, cross-linking and polymerization followed by thawing of ice-crystals to form an interconnected porous cryogel network. This phenomenon mostly thought as a theoretical concept has now been revealed here in practical terms via data generated by micro-computed tomography (Micro CT). Micro CT is mainly used for characterizing the gel materials in terms of their physical properties like pore size, porosity, strut size, etc., whereas this work has pioneered its role in elucidating the process of cryogel formation. DEWEY : 620 ISSN : 1369-7021 En ligne : http://www.sciencedirect.com/science/article/pii/S1369702110702029 [article] Cryogels : freezing unveiled by thawing [texte imprimé] / Ashok Kumar, Auteur ; Ruchi Mishra, Auteur ; Yvonne Reinwald, Auteur . - 2011 . - pp. 42-44. Ingénierie Langues : Anglais (eng) in Materials today > Vol. 13 N° 11 (Novembre 2010) . - pp. 42-44 Mots-clés : Cryogels  Ice-crystal  formation  Polymerization  Gel  materials Index. décimale : 620 Essais des matériaux. Matériaux commerciaux. Station génératrice d'énergie. Economie de l'énergie Résumé : Cryogels are interconnected supermacroporous gels prepared at sub-zero temperatures having applications in various research fields. The process of cryogelation is ideally thought to take place via following steps: phase separation with ice-crystal formation, cross-linking and polymerization followed by thawing of ice-crystals to form an interconnected porous cryogel network. This phenomenon mostly thought as a theoretical concept has now been revealed here in practical terms via data generated by micro-computed tomography (Micro CT). Micro CT is mainly used for characterizing the gel materials in terms of their physical properties like pore size, porosity, strut size, etc., whereas this work has pioneered its role in elucidating the process of cryogel formation. DEWEY : 620 ISSN : 1369-7021 En ligne : http://www.sciencedirect.com/science/article/pii/S1369702110702029