沙柳及柠条灌木材液化产物的核磁共振谱分析

林产化学与工业 ›› 2009, Vol. 29 ›› Issue (4): 101-104.

沙柳及柠条灌木材液化产物的核磁共振谱分析

黄金田, 高冠慧

内蒙古农业大学材料科学与艺术设计学院, 内蒙古呼和浩特 010018

收稿日期:2008-07-07 修回日期:1900-01-01 出版日期:2009-08-30 发布日期:2009-08-30

Analysis of NMR Spectra on Liquefied Products from Salix psammophila and Caragana intermedia Woods

HUANG Jin-tian, GAO Guan-hui

College of Material Science and Art Design, Inner Mongolia Agricultural University, Huhhot 010018, China

Received:2008-07-07 Revised:1900-01-01 Online:2009-08-30 Published:2009-08-30

摘要/Abstract

摘要： 以苯酚为液化剂、硫酸为催化剂的高温油浴加热下液化沙柳、柠条。采用核磁共振仪分别测试了二者液化产物的结构并进行比较分析,结果显示:沙柳、柠条在酸性条件下液化过程中,同时进行着降解、缩聚反应,液化产物主要生成了β-D-葡萄糖和松柏醇芳香核质子以及愈创木基型木质素结构;从 ¹HNMR 图谱看出:沙柳液化物峰面积中所含平均质子的数量要多于柠条液化物,而 ¹³CNMR 分析中,二者液化物的化学位移位置变化基本一致,只是沙柳液化物的谱线强度要比柠条液化物的谱线强度稍大一些。

关键词: 木材液化, 液化产物, 核磁共振波谱

Abstract: The wood meals of Salix psammophila, Caragana intermedia are liquefied with phenol respectively using sulfuric acid as catalyst inheated oil bath. The liquefied resultants of S.psammophila and C.intermedia are measured and analyzed comparatively by NMR spectra. The results show:during liquefaction of S.psammophila and C.intermedia wood under acidic conditions, degradation and polycondensation reaction arehappened simultaneously, and the main liquefied products are β-D-glucose, coni-feryl alcohol, aromatic nucleus proton, and the guaiacyl group of lignin structure. From ¹HNMR, peak areas of S.psammophila liquefied product contain more average number of protons than C.intermedia liquefaction product. In ¹³CNMR analysis, their chemical shift positions are similar basically, only the spectral intensity of S.psammophila liquefied product is slightly larger.

Key words: liquefaction of wood, liquefied resultant, NMR spectra

中图分类号:

TQ351.0

黄金田;高冠慧. 沙柳及柠条灌木材液化产物的核磁共振谱分析[J]. 林产化学与工业, 2009, 29(4): 101-104.

HUANG Jin-tian;GAO Guan-hui. Analysis of NMR Spectra on Liquefied Products from Salix psammophila and Caragana intermedia Woods[J]. , 2009, 29(4): 101-104.

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