Analysis of the Structural Aspects of Tannin-Based Adhesives by 2D-NMR
 

Analysis of the Structural Aspects of Tannin-Based Adhesives by 2D-NMR

We developed non-toxic, harmless adhesives composed of all-natural and renewable resources, of which one was composed of tannin and gelatin, which unfortunately was lacking water resistance, and the other of tannin and ?-poly-l-lysine. In this study, we analyzed the chemical structures of these adhesives by two-dimensional nuclear magnetic resonance (2D-NMR) to explain the difference in water-resistance of the two glues. The results showed that only one proton was left in the benzene ring of...

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