Figure 4
From: Transparent wood composite prepared from two commercially important tropical timber species
FTIR spectra of (A) rubberwood, bleached rubberwood, unsaturated polyester resin (UPR), and rubberwood TW; (a) Magnified view of the spectral region showing preservation of lignin and other chemical changes in rubberwood after lignin modification and (B) ailanthus wood, bleached ailanthus wood, unsaturated polyester resin (UPR), and ailanthus TW; (b) Magnified view of the spectral region showing preservation of lignin and other chemical changes in ailanthus wood after lignin modification.
