Heterogeneous interaction between sulpho-syntans and collagen, part 6 / Z. Korenek in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 3 (05-06/1992)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 76, N° 3 (05-06/1992) . - p. 75-82 Titre : Heterogeneous interaction between sulpho-syntans and collagen, part 6 : Influence of reaction conditions and sulpho-syntan oligoelectrolyte molecular parameters Type de document : texte imprimé Auteurs : Z. Korenek, Auteur ; M. Vondruska, Auteur ; J. Mikulik, Auteur ; Z. Vinklàrek, Auteur Année de publication : 1992 Article en page(s) : p. 75-82 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Recently described PELC stoichiometry has been verified for the reaction between collagen fibres (BAT) and oligoelectrolytes (OEL) and its dependence on reaction conditions, structural and molecular parameters of OEL. It has been found that within a certain region of reaction conditions there occurs a stabilization of the chemical composition of the resultant compound for each of the OEL studied which correspond to stoichiometric polyelectrolyte complex of the pendent-pendent type. As has been shown by measuring the shrinkage temperature of tanned BAT samples their hydrothermal stability rises with the increasing level of irreversibly bound OEL up to the point of formation of a stoichiometric PELC ; hydrothermal stability does not change further with increases in bound OEL above this point (stoichiometry). Further, it has been found that, unlike stoichiometry, hydrothermal stability is significantly dependent on the structural and molecular parameters of the OEL. En ligne : https://drive.google.com/file/d/1jfYGfGk3FUNQ-qTmjjnrrrbLaLk0cPCh/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8609 [article]

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Heterogeneous interaction between sulpho-syntans and collagen, part 7 / Z. Vinklàrek in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 5 (09-10/1992)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 76, N° 5 (09-10/1992) . - p. 162-168 Titre : Heterogeneous interaction between sulpho-syntans and collagen, part 7 : Polyionic network hypothesis Type de document : texte imprimé Auteurs : Z. Vinklàrek, Auteur ; Z. Korenek, Auteur ; J. Vaculik ; M. Vondruska Année de publication : 1992 Article en page(s) : p. 162-168 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : During the reaction between oligoelectrolyte and collagen, a polyelectrolyte complex of the pendent-pendent type is formed. This kind of intermolecular complex has the structure of a three dimensional polyionic network, which is only intrafibrilliary polyionic network has been discussed theoretically. The structure of collagen compounds with oligoelectrolyte on the basis of naphthalene-2-sulphonic acid condensed with formaldehyde (syntanin) has then been followed up experimentally by scanning electron microscopy (SEM) and its correspondence to theroretical assumptions has been discussed. En ligne : https://drive.google.com/file/d/11vNW7j0gitPbjrCzqBRA317n0_AL5nVx/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8575 [article]

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