Separation of liquefied product of Salix psammophila by column chromatography and structure analysis of its components |
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| Authors: | GAO Guan-hui HUANG Jin-tian |
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| Institution: | [1]College of Material Science and Art Design, Inner Mongolia Agricultural University, Huhhot 010018, E R. China [2]Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100, E R. China |
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| Abstract: | The liquefied product of Salix psammophila wood was separated by thin-layer chromatography (TLC) and column chro-matography, and its structure was identified by nuclear magnetic resonance (NMR) spectra in our study. The separation result indi-cates that the sample of liquefied S. psammophila contained at least two categories of components. The structure of the main compo-nents was guaiacyl C-1, C-2 of the hydroxyphenyl propane, i.e., the aromatic nucleus protons of lignin. Degradation and polycon-densation reactions occurred when the S. psammophila wood was liquefied in phenol. Polycondensation reactions occurred among the depolymerization products from cellulose, the aromatic depolymerization products from lignin and the products of the displace-ment reactions between phenoxide ion and cellulose. |
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| Keywords: | liquefied residue of Salix psammophila thin-layer chromatography (TLC) column chromatography separation nuclear magnetic resonance (NMR) |
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