Author： Bermello A.
Publisher： Taylor & Francis Ltd
ISSN： 0091-4037
Source： International Journal of Polymeric Materials, Vol.51, Iss.6, 2002-06, pp. : 557-566
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Abstract
Lignin is, after cellulose, the main component of most vegetable fibers. The term lignin is very widely used and it is considered as a mixture of ramified natural polymers, of great structural complexity, with prevalence of aromatic structures, particularly phenolics where any defined repeated unit does not exist [1]. Eucalyptus is the common name of a gender of trees of the Mirtáceas family. The species Eucalyptus pellet F. Muell, Eucalyptus citriodora Hook and Eucalyptus saligna Smith are very diffused in Pinar del Río county. In the Center of Studies of the Forest Biomass of the Pinar del Río University man works in the chemical characterization of these species, for their best use. In this work, lignin IR spectra from the wood of these three eucalyptuses species, obtained by means of treatment with H2SO4 and from three heights of the tree trunk, are studied and compared.
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