Polycondensation Resins by Flavonoid Tannins Reaction with Amines
AbstractReaction of a condensed flavonoid tannin, namely mimosa tannin extract with a hexamethylene diamine, has been investigated. For that purpose, catechin was also used as a flavonoid model compound and treated in similar conditions. Solid-state cross-polarisation/magic-angle spinning (CP-MAS) carbon 13 nuclear magnetic resonance (13C NMR) and matrix assisted laser desorption ionisation time of flight (MALDI-ToF) mass spectroscopy studies revealed that polycondensation compounds leading to resins were obtained by the reaction of the amines with the phenolic hydroxy groups of the tannin. Simultaneously, a second reaction leading to the formation of ionic bonds between the two groups occurred. These new reactions have been shown to clearly lead to the reaction of several phenolic hydroxyl groups, and flavonoid unit oligomerisation, to form hardened resins. View Full-Text
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Santiago-Medina, F.-J.; Pizzi, A.; Basso, M.C.; Delmotte, L.; Celzard, A. Polycondensation Resins by Flavonoid Tannins Reaction with Amines. Polymers 2017, 9, 37.
Santiago-Medina F-J, Pizzi A, Basso MC, Delmotte L, Celzard A. Polycondensation Resins by Flavonoid Tannins Reaction with Amines. Polymers. 2017; 9(2):37.Chicago/Turabian Style
Santiago-Medina, Francisco-Jose; Pizzi, Antonio; Basso, Maria C.; Delmotte, Luc; Celzard, Alain. 2017. "Polycondensation Resins by Flavonoid Tannins Reaction with Amines." Polymers 9, no. 2: 37.
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