Comparative-Study of Stone-Ground Wood Pulp and Native Wood .2.Comparison of the Fluoresence of Stone-Ground Wood Pulp and Native Wood

Castellan, Alain and Choudhury, Hasneen and Davidson, R. Stephen and Grelier, Stéphane (1994) Comparative-Study of Stone-Ground Wood Pulp and Native Wood .2.Comparison of the Fluoresence of Stone-Ground Wood Pulp and Native Wood. Journal of Photochemistry and Photobiology a-Chemistry, 81 (2). pp. 117-122. ISSN 1010-6030. (The full text of this publication is not available from this repository)

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Abstract

The fluorescence spectra of paper made from high yield pulp (stone-ground wood pulp (SGWP)) and of thin sections of a softwood (Abies) were recorded and shown to be very similar. The fluorescence from a wood sample, previously reduced with sodium borohydride, shows a biexponential decay, with the magnitude and contribution of the components being dependent on wavelength. From the bleaching kinetics of the chromophores producing the fluorescence, it is concluded that the emission observed for paper made from high yield pulp and for wood originates mainly from lignin and not as previously suggested from cellulose. The steady state and dynamic fluorescence of some lignin model molecules adsorbed on cellulose indicates that the fluorescence of wood, which has been reduced by sodium borohydride, might -originate to some extent from coniferyl alcohol and biphenyl-type structures.

Item Type: Article
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts
Depositing User: P. Ogbuji
Date Deposited: 03 Jul 2009 18:16
Last Modified: 16 May 2014 09:25
Resource URI: http://kar.kent.ac.uk/id/eprint/20426 (The current URI for this page, for reference purposes)
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