Raman microscopic analysis of wood after treatment with the ionic liquid, 1-ethyl-3-methylimidazolium chloride

被引：14

作者：

Kanbayashi, Toru ^{[2
]}

Miyafuji, Hisashi ^{[1
]}

机构：

[1] Kyoto Prefectural Univ, Grad Sch Life & Environm Sci, Sakyo Ku, Kyoto 6068522, Japan

[2] Kyoto Prefectural Univ, Grad Sch Life & Environm Sci, Kyoto 6068522, Japan

来源：

HOLZFORSCHUNG | 2015年 / 69卷 / 03期

关键词：

cellulose; cell wall; 1-ethyl-3-methylimidazolium chloride; ionic liquid (IL); Japanese cedar (Cryptomeria japonica); lignin; Raman microscopy; wood; MORPHOLOGICAL-CHANGES; JAPANESE BEECH; SPRUCE; SPECTROSCOPY; DISSOLUTION; LIGNIN; LIQUEFACTION; BEHAVIOR; BAND;

D O I：

10.1515/hf-2014-0060

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Japanese cedar (Cryptomeria japonica) was treated with the ionic liquid (IL) 1-ethyl-3-methylimidazolium chloride ([C2mim][Cl]), which is a solvent for cellulose, and the changes in the chemical components and their distribution in wood cell walls have been investigated by Raman microscopy. Raman spectra, recorded from various areas of the cell walls, showed that lignin in the compound middle lamellae (CML) and cell corners (CC) was resistant to the reaction with [C2mim][Cl], but its molecular structure changed partially. The reactivity of cellulose and hemicelluloses with [C2mim][Cl] was higher than that of lignin in the cell wall, and the cell wall structure was maintained even in an advanced state of the reactions. The effects of [C2mim][Cl] on cellulose and hemicelluloses in the cell wall were homogeneous, whereas that of lignin was inhomogeneous.

引用

页码：273 / 279

页数：7

共 27 条

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