JOURNAL OF CHILEAN CHEMICAL SOCIETY

Vol 61 No 4 (2016): Journal of the Chilean Chemical Society
Original Research Papers

STRUCTURE AND THERMAL BEHAVIOR OF TANNINS FROM Acacia dealbata BARK AND THEIR REACTIVITY TOWARD FORMALDEHYDE

Justo Lisperguer
Facultad de Ciencias, Departamento de Química, Universidad del Bio-Bio
Yanina Saravia
Centro de Investigación de Polímeros Avanzados, CIPA
Emilio Vergara
Centro de Investigación en Tecnologías de la Construcción, Universidad del Bio-Bio
Published May 29, 2017
Keywords
  • Tannins,
  • Acacia dealbata bark,
  • Structure of tannins,
  • Thermal behavior
How to Cite
Lisperguer, J., Saravia, Y., & Vergara, E. (2017). STRUCTURE AND THERMAL BEHAVIOR OF TANNINS FROM Acacia dealbata BARK AND THEIR REACTIVITY TOWARD FORMALDEHYDE. Journal of the Chilean Chemical Society, 61(4). Retrieved from https://jcchems.com/index.php/JCCHEMS/article/view/107

Abstract

The objective of this study was to evaluate the tannin extraction potential taken from the bark of Acacia dealbata. This tannins were extracted with water at 90°C. An extraction yield of 17.2% solids with a Stiasny number of 82% was obtained from the bark extract of Acacia dealbata. The structure was studied by Fourier transform infrared spectroscopy (FTIR). The thermal behavior of tannins was studied by DSC and a glass- transition temperature (Tg) of 116,77°C was determined. The thermal stability of tannins was studied by TGA. At 196.91°C the decomposition is 3.7% and the maximum of the weight loss rate (DTG) of the degradation was 257.77°C. The curing with formaldehyde showed an exotherm reaction in the range of 100-120°C, which is similar to tannins of other species. 

References

  1. A.Pizzi, J. Adhesion Sci.Technol. 20, 829, (2006).
  2. M.H.Alma, S.S.Kelley, Polym.Degrad.Stab. 68, 413, (2003).
  3. E.Roffael, B.Dix, J.Okum, Holz als Roh und Werkstoff 58, 301, (2000).
  4. M.Mosiewicki, M.I.Aranguren, J.Borrajo, J.Appl. Polym.Sci. 91, 3074, (2004).
  5. M.Fechtal, B.Riedl, Holzforschung 47, 349, (1993).
  6. Y. Lu, Q.Shi, Holz als Roh und Werkstoff 53, 17, (1995).
  7. A.Pizzi in Handbook of Adhesive Technology, A.Pizzi, K.L.Mittal eds. Marcel Dekker, New York, 2003.
  8. F.Pichelin, C.Kamoun, A.Pizzi, Holz als Roh und Werkstoff 57, 305, (1999).
  9. P.M.Stefani, C.Peña, R.A.Ruseckaite, J.C.Piter, I Mondragon, Bioresource Technology 99, 5977, (2008).
  10. W.J.Lee, W.C.Lan, Bioresource Technology 97, 257, (2006).
  11. R. Nico, Plásticos de tanino de quebracho, Laboratorio de Ensayo de Materiales e Investigaciones Tecnológicas-LEMIT, Report 38, Series II, La Plata, Argentina, (1951).
  12. A.Pizzi in Wood Adhesives: Chemistry and Technology, A.Pizzi ed.Marcel Dekker, New York, 1983.
  13. A. Scalbert, Phytochem. 30, 3875, (1991).
  14. W.J.Grigsby, S.J.Hill, C.D.McIntosh, J.Wood Chem. Technol. 23, 179, (2003).
  15. S.Ohara, Y.Yasuta, H.Ohi, Holzforschung 57, 145, (2003).
  16. L.Ping, A.Pizzi, Z. D. Guo, N.Brosse, Ind. Crops Prod. 40, 13, (2012).
  17. L.Ping, A.Pizzi, Z.D. Gu0, N.Brosse, Ind.Crops Prod. 34, 907, (2011).
  18. F.Bertaud, S.Tapin-Lingua, A.Pizzi, P.Navarrete, M.Petit-Conil, Cellulose Chem.Technol. 46, (7-8), (2012)
  19. W.J.Lee, W.C. Lan, Bioresource Technol. 97, 257, (2006).
  20. J. Aguilar, J. Jaen, A.Vargas, P.Jiménez, L. Vega, J.Herrera, H.Borbón, R, Soto, Tecnología en Marcha 25, (4), 15 (2012).
  21. J.Lisperguer, P.Pérez, S Urizar, J.Chil.Chem.Soc. 54, 460, (2009).
  22. J. Lisperguer, C. Droguett, B. Ruf, J.Chil.Chem.Soc. 50, 375, (2005).

Copyright @2019 | Designed by: Open Journal Systems Chile Logo Open Journal Systems Chile Support OJS, training, DOI, Indexing, Hosting OJS

Code under GNU license: OJS PKP