[article]
| Titre : |
High stability organic tanning using plant polyphenols. Part 2 : The mechanism of the vegetable tannin-oxazolidine tannage |
| Type de document : |
texte imprimé |
| Auteurs : |
Bi Shi, Auteur ; Youjie He, Auteur ; Haojun Fan, Auteur ; Shaoyu Zeng, Auteur ; Anthony D. Covington, Auteur ; Geoffrey E. Attenburrow, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 8-13 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Catechin was used as a model for condensed vegetable tanning, to elucidate the reaction between the flavonoid ring system and oxazolidines in the combination tannage. Using 1H-NMR, 13C-NMR and paper chromatography, it is shown that the crosslinking reaction occurs predominantly at the C-6 and C-8 of the phloroglucinol A ring of catechin. The crosslinker reacts at the C-5 of oxazolidine, by ring opening and reacting via the N-methylol intermediate. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7851 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 83, N° 1 (01-02/1999) . - p. 8-13
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High stability organic tanning using plant polyphenols. Part 2 in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 83, N° 1 (01-02/1999)
