液体核磁共振技术用于木质素结构表征的研究进展OA北大核心CSTPCD
Research Progress on Solution-state Nuclear Magnetic Resonance(NMR)Technique for Lignin Structure Characterization
木质素是自然界中丰富的可再生芳香类大分子聚合物,阐明木质素的结构特征对木质素的高值化利用具有重要意义.迄今为止,涵盖多种原子核(1H、13C、31P、19F等)的液体核磁共振(NMR)技术是表征木质素结构特征强有力的分析手段.本文综述了液体NMR技术(氢谱、碳谱、磷谱、氟谱和二维异核单量子碳氢谱)用于表征木质素不同结构特征(如连接键、官能团、化学组成等)的优势,介绍了NMR测试时的制样方法和注意事项,概述了NMR技术在木质素结构表征方面的研究进展,重点阐述了NMR技术在不同木质素结构研究中的适用性,以期为针对性地选择合适的NMR技术对木质素结构进行准确表征和解析,进一步实现木质素的高值化利用提供参考.
Lignin is a renewable aromatic polymer abundant in nature,and understanding its structural features is of great importance for its valuable utilization.Solution-state nuclear magnetic resonance(NMR)techniques,including 1H,13C,31P,19F,have proven to be powerful analytical tools for characterizing lignin's structural features.This article provided an overview of the advantages of solution-state NMR tech-niques in characterizing various structural features of lignin,such as linkages,functional groups,and chemical composition.Sample prepara-tion methods and considerations for NMR analysis were described,and the research progress of NMR techniques in lignin structural character-ization was outlined,with a focus on their applicability to different lignin structures.This article will aid in the targeted selection of appropri-ate NMR techniques for accurate characterization and analysis of lignin structures,promoting the high-value utilization of lignin.
徐荧;马成业;张琛;徐玲花;文甲龙
北京林业大学材料科学与技术学院,北京,100083
化学工程
木质素结构表征分析核磁共振技术
ligninstructural characterizationanalysisNMR
《中国造纸学报》 2024 (002)
23-34 / 12
国家自然科学基金(32271972,32071854);5·5北京林业大学工程研究与创新团队项目(BLRC 2023 b05).
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