Dimensional stabilization of wood by chemical modification using isopropenyl acetate
Keywords:
Chemical modification, dimensional stabilit, , iodine, isopropenyl acetate, rubberwood.Abstract
Chemical modification of wood with isopropenyl acetate (IPA) using iodine (I2) as catalyst has been carried out. Rubber wood (Hevea brasiliensis) specimens were reacted with IPA using iodine (I2) catalyst at 95°C up to 10 h under solvent free conditions. The effect of catalyst concentration and reaction time was studied. The extent of acetylation was measured by determining weight percent gain and the modified wood was characterized by FTIR-ATR and 13C NMR spectroscopy. It was found that IPA in the presence of iodine is an excellent acylating reagent for wood. Modified wood exhibited highdimensional stability
Downloads
References
Can, A.; Sivrikaya, H. 2016. Dimensional stabilization of wood treated with Tall oil dissolved in different solvents. Maderas. Ciencia y Tecnología 18(2):317-324.
Faix, O. 1992. Fourier transform infrared spectroscopy. In: Methods in Lignin Chemistry. Eds. Lin, S.Y., Dence, C.W. Springer-Verlag, New York. pp. 83-109.
Giridhar, B.N.; Pandey, K.K. 2016. UV resistance and dimensional stability of wood modified with isopropenyl acetate. J Photochem Photobiol B: Biology 155:20-27.
Harrington, K.J.; Higgins, H.G.; Michell, A.J. 1964. Infrared spectra of Eucalypus regnans F. Muell. and Pinus radiata D. Don. Holzforschung 18:108-113.
Hill, CAS. 2006. Wood Modification: Chemical, Thermal and Other Processes. John Wiley and Sons, Ltd., Chichester. Jebrane, M.; Sèbe, G.; Cullis, I.; Evans, P. D. 2009. Photostabilization of wood using aromatic vinyl esters. Polym Degrad Stabil 94:151-157.
Lopes, D.B.; Mai, C.; Militz, H. 2014. Marine borers resistance of chemically modified Portuguese wood. Maderas. Ciencia y Tecnología 16(1):109-124.
Lopes, D.B.; Mai, C.; Militz, H. 2015. Mechanical properties of chemically modified Portuguese pinewood. Maderas. Ciencia y Tecnología 17(1):179-194.
Matsuda, H. 1996. Chemical modification of solid wood. In: Chemical Modification of Lignocellulosic Materials. Ed. Hon, D.N.S. Marcel Dekker, New York. pp. 159-183.
Pandey, K.K. 1999. A study of chemical structure of softwood and hardwood and wood polymers by FTIR spectroscopy. J Appl Polym Sci 71:1969-1975.
Rowell, R.M. 1983. Chemical modification of wood. Forest Products Abstracts 6:363-382.
Rowell, R.M. 2006. Chemical modification of wood: A short review. Wood Mat Sci Eng 1:29-33.
Rowell, R.M. 2013. Chemical modification of wood. In: Handbook of Wood Chemistry and Wood Composites. Ed. Rowell, RM. Taylor and Francis, CRC press, Florida. pp. 537-598.
Rowell, R.M.; Ellis, W.D. 1978. Determination of dimensional stabilization of wood using the water-soaked method. Wood Fiber Sci 10:104-111.
Sun, X.F.; Sun, R.C.; Sun, J.X. 2004. Acetylation of sugarcane bagasse using NBS as a catalyst under mild reaction conditions for the production of oil sorption-active materials. Biores Techn 95:343-350.
