Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 59, Issue -, Pages 329-336Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2014.05.036
Keywords
Hydrolysable tannins; Polyurethanes; Urethanes; Carbonates; MALDI-TOF spectrometry; C-13 NMR spectrometry; FTIR spectrometry
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Funding
- Deanship of Scientific Research (DSR), King Abdulaziz University (KAU), Jeddah, Saudi Arabia [6-130-1434-HiCi]
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Hydrolysable chestnut tannins, which contain several hydroxyl groups, were reacted with dimethyl carbonate, and then with hexamethylenediamine. The dried product was analyzed in MALDI-TOF, C-13 NMR and FTIR spectrometry. The spectra revealed the presence of urethane functions and their yield was relatively high. This synthesis of polyurethanes is interesting because it does not depend on using isocyanates as reactants while instead utilizing a natural material, hydrolysable chestnut tannin, as their major constituent. (C) 2014 Elsevier B.V. All rights reserved.
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