Characterization of the products resulting from ethylene glycol liquefaction of cellulose

被引：177

作者：

Yamada, T

Ono, H

机构：

[1] Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan

[2] Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, Tokyo 1138657, Japan

来源：

JOURNAL OF WOOD SCIENCE | 2001年 / 47卷 / 06期

关键词：

liquefaction; ethylene glycol; wood; cellulose; NMR;

D O I：

10.1007/BF00767898

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The composition of liquefied cellulose in the presence of ethylene glycol (EG) was studied. The liquefied products were fractionated and analyzed with high-performance liquid chromatography and nuclear magnetic resonance. EG-glucosides were detected as the only saccharides and 2-hydroxyethyl levulinate as the highly decomposed compound derived from cellulose, Quantitative analysis of the EG-glucosides and levulinic acid that comes from the levulinate shows the presence of the following mechanism in the EG-liquefaction of cellulose. First, cellulose is degraded and produces considerable amounts of EG-glucosides during the early stage of liquefaction. Then, when liquefaction is prolonged, the glucosides are decomposed, leading to a large quantity of levulinates.

引用

页码：458 / 464

页数：7

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