Introduction of intra- and inter-molecular cross-bonds by mono and bifunctional sulphonyl chlorides in soluble collagen / M. S. Olivannan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 60 (Année 1976)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 60 (Année 1976) . - p. 12-15 Titre : Introduction of intra- and inter-molecular cross-bonds by mono and bifunctional sulphonyl chlorides in soluble collagen Type de document : texte imprimé Auteurs : M. S. Olivannan, Auteur ; Y. Nayudamma, Auteur Année de publication : 1976 Article en page(s) : p. 12-15 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chlorure de sulfonyle Collagène Dissolution (chimie) Electrophorèse Réticulation (polymérisation) Viscosité Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Collagen was treated with different sulphonyl chlorides and some of the physico-chemical properties of the modified collagen such as viscosity, dissolution temperature and polyacrylamide disc electrophoretic pattern were studied. The monofunctional sulphonyl chlorides increased the viscosity of the collagen solution, probably due to aggregation of molecules facilitated by hydrophobic bonds. However, the very high viscosity observed in the case of disulphonyl chlorides with collagen indicates that inter-molecular cross-links are formed with these reagents. From dissolution temperatures and polyacrylamide gel electrophoretic patterns, it is considered that disulphonyl chlorides can introduce intra- and inter-molecular cross-links in collagen under suitable conditions. Note de contenu : - EXPERIMENTAL : Preparation of soluble collagen - Treatment of soluble collagen with various sulphonyl chlorides - Viscosity measurements - Dissolution temperature - Acrylamide gel electrophoresis - RESULTS AND DISCUSSION : Viscosity - Dissolution temperature - Polyacrylalide gel electrophoresis - Table 1 : Relative viscosity of collagen treated with sulphonyl chlorides - Table 2 : Dissolution temperature of collagen treated with sulphonyl chlorides - Fig. 1 : Disc electrophoresis sub-unit patterns of collagen - Fig. 2 : Dis electrophoresis and sub-unit patterns of collagen - Fig. 3 : Disc electrophoresis sub-unit patterns of collagen En ligne : https://drive.google.com/file/d/1E2O7vmxkPNuTmBItAYrXh0FY7EQJ677n/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35259 [article]

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