A novel simple route to wood acetylation by transesterification with vinyl acetate

被引：39

作者：

Jebrane, Mohamed ^{[1
]}

Sebe, Gilles ^{[1
]}

机构：

[1] Univ Bordeaux 1, Lab Chim Subst Vegetales, F-33405 Talence, France

来源：

HOLZFORSCHUNG | 2007年 / 61卷 / 02期

关键词：

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

D O I：

10.1515/HF.2007.026

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

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.

引用

页码：143 / 147

页数：5

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