Abstract

A novel method for the acetylation of wood was investigated and compared with the classical method based on acetic anhydride. The transesterification reaction between vinyl acetate (VA) and hydroxyl groups of maritime pine sapwood (Pinus pinaster Soland) was performed in the presence of potassium carbonate as a catalyst and led to acetylated wood in high yield. The transesterification reaction was confirmed by FTIR and C-13 CP-MAS NMR spectroscopy. The efficiency of the VA transesterification increased with increasing temperature, reaction time, and catalyst amount, but a significant weight percentage gain (WPG) was obtained after only 3 h at 90 degrees C.

Keywords

C-13 CP-MAS NMR spectroscopy; chemical modification; FTIR spectroscopy; transesterification; vinyl acetate; wood

Published in

Holzforschung
2007, Volume: 61, number: 2, pages: 143-147

UKÄ Subject classification

Wood Science
Materials Chemistry


Publication identifier

DOI: https://doi.org/10.1515/HF.2007.026

Permanent link to this page (URI)

https://res.slu.se/id/publ/89711