Photostabilisation of wood using aromatic vinyl esters
SÈBE, Gilles
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
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Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
SÈBE, Gilles
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
< Réduire
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Langue
en
Article de revue
Ce document a été publié dans
Polymer Degradation and Stability. 2009, vol. 94, n° 2, p. 151-157
Elsevier
Résumé en anglais
Thin wood veneers were esterified to different weight gains with vinyl benzoate, vinyl cinnamate or vinyl-4-T-butylbenzoate to graft aromatic groups to wood's molecular components. We hypothesised that Such modification ...Lire la suite >
Thin wood veneers were esterified to different weight gains with vinyl benzoate, vinyl cinnamate or vinyl-4-T-butylbenzoate to graft aromatic groups to wood's molecular components. We hypothesised that Such modification would increase the resistance of wood to photodegradation. There was a linear relationship between the level of esterification of wood with vinyl benzoate and the photostability of the modified veneers exposed to natural weathering. Vinyl benzoate protected lignin and cellulose in wood from photodegradation at high weight gains (>30%) whereas modification of wood with vinyl-4-T-butylbenzoate provided no Such protection and vinyl cinnamate increased the photodegradation of wood. We provide an explanation for why these effects Occurred and discuss the implications of our findings, for the development of weather-resistant wood materials. (C) 2008 Elsevier Ltd. All rights reserved.< Réduire
Mots clés en anglais
Wood
Photostabilization
Chemical modification
Aromatic vinyl esters
Origine
Importé de halUnités de recherche