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Structural Change of Silvergrass Lignin in Auto-catalyzed Ethanol-water Pulping
Author(s): ZHANG Meiyun
Pages: 11-
15
Year: 2004
Issue:
2
Journal: TRANSACTIONS OF CHINA PULP AND PAPER
Keyword: 荻; 乙醇制浆; 木素;
Abstract: 通过IR、1H-NMR技术初步研究了荻自催化乙醇制浆中木素结构的变化.结果表明,制浆过程中,木素结构被破坏程度较小,黑液中木素仍含有大量活性基因(羟基).MWL和CL(从黑液中提取的木素)两者结构变化较小,反应过程中紫丁香基结构单元(S型)和对羟苯基结构单元(H型)木素易被脱除,并伴有木素α-O-4醚键的断裂.
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