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MALDI-ToF Analysis of Tannin-Resorcinol Resins by Alternative Aldehydes: Glyoxal and Glutaraldehyde

Abstract : Glyoxal and glutaraldehyde are two viable alternatives to formaldehyde for the preparation of tannin-resorcinol-aldehyde adhesive but lead to less resistant glue joint. Tannin-resorcinol-glyoxal (TRG1) and tannin-resorcinol-glutaraldehyde (TRG2) resins have been prepared and analyzed by matrix-assisted laser desorption/ionization time of flight (MALDI-ToF) spectrometry to understand the chemical process behind the pre-curing of these resins and possibly the causes of this lower resistance. The analysis showed that TRG resins are not a simple mix of resorcinol-aldehydes oligomers and flavonoids, but a much more complex combination of various species including tannin-aldehydes and tannin-resorcinol oligomers.
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https://hal.univ-lorraine.fr/hal-01597480
Contributor : Lermab Ul <>
Submitted on : Thursday, September 28, 2017 - 12:13:06 PM
Last modification on : Tuesday, March 20, 2018 - 10:17:44 AM

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A. Sauget, X. Zhou, A. Pizzi. MALDI-ToF Analysis of Tannin-Resorcinol Resins by Alternative Aldehydes: Glyoxal and Glutaraldehyde. Journal of Renewable Materials, Scrivener publishing, 2014, 2 (3), pp.186-200. ⟨10.7569/JRM.2013.634138⟩. ⟨hal-01597480⟩

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