A kinetic study of the acetylation of cellulose, hemicellulose and lignin components in wood

被引：0

作者：

Ramsden M.J. ^{[1
]}

Blake F.S.R. ^{[1
]}

机构：

[1] Department of Chemistry, University of York, Heslington, York

来源：

Wood Science and Technology | 1997年 / 31卷 / 1期

关键词：

Acetic; Cellulose; Hydroxyl; Activation Energy; Lignin;

D O I：

10.1007/BF00705699

中图分类号：

学科分类号：

摘要：

The rates of acetylation of Deal, Larch, Southern Yellow Pine and Sitka Spruce using acetic anhydride in xylene have been measured and compared with the composition of the woods. Although these woods have similar macroscopic characteristics, the correlation between rate of acetylation and composition remains unclear, although the holocellulose may play a role in converting the hydrophilic hydroxyl groups to hydrophobic acetyl groups. The rate of acetylation of Larch at 373 K was insignificant but the other wood samples showed significant acetylation at this temperature. The activation energies for the acetylation process suggest that several routes may be involved.

引用

页码：45 / 50

页数：5

共 7 条

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