4种常见木质素有机溶剂法分级的研究进展  

Research Progress of Four Common Lignin Fractionated by Organic Solvent Method

作　　者：程鹏超 孙衍宁 李尧 李继庚[2] 王兴 孙广卫 张馨月 CHENG Pengchao;SUN Yanning;LI Yao;LI Jigeng;WANG Xing;SUN Guangwei;ZHANG Xinyue(College of Light Industry&Chemical Engineering,Liaoning Key Lab of Lignocellulose Chemistry and Biomaterials,Dalian Polytechnic University,Dalian,Liaoning Province,116034;State Key Lab of Pulp and Paper Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640)

机构地区：[1]大连工业大学轻工与化学工程学院,辽宁生物质化学与材料重点实验室,辽宁大连116034 [2]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《中国造纸学报》2024年第2期1-8,共8页Transactions of China Pulp and Paper

基　　金：国家自然科学基金面上项目(22278046);华南理工大学制浆造纸工程国家重点实验室开放基金(202111)。

摘　　要：随着对木质素基生物质材料开发和研究的逐渐深入,进一步提高木质素基生物质材料的性能,需对木质素原料进行结构分级。有机溶剂法分级是一种可以获得具有特定理化性质木质素的简单可行的分级方法。本文总结了近年来采用有机溶剂法,对硫酸盐木质素、有机溶剂木质素、碱木质素和酶解木质素4种常见木质素进行分级,且分级效果较好的研究成果,利用分子质量及分子质量分布,以及醇羟基、酚羟基、甲氧基等官能团含量作为分级评价指标,比较了不同分级策略所使用的单一或多种有机溶剂的分级特点和优缺点,并对木质素分级研究作简要总结和展望。With the development of research on lignin-based biomass materials,in order to further improve the performance of lignin-based biomass materials,it is necessary to classify the lignin raw materials.Organic solvent fractionation is a simple and feasible method to obtain lignin with specific physicochemical properties.This paper summarized the research results of classifying 4 kinds of lignin,including sulfate lignin,organic solvent lignin,alkali lignin and enzymolysis lignin,by using organic solvent method in recent years.The molecular weight and molecular weight distribution,as well as the contents of functional groups such as alcohol hydroxyl group,phenol hydroxyl group and methoxy group,were used as grading indexes.The characteristics,advantages and disadvantages of single or multiple organic solvents used in different fractionation strategies were compared,and the research on lignin fractionation was briefly summarized and prospected.

关 键 词：木质素 分级方法 有机溶剂 分子质量分布 

分 类 号：TQ351[化学工程]