文献类型：期刊文献

英文题名：Toward well-defined colloidal particles: Efficient fractionation of lignin by a multi-solvent strategy

作者：Jiang, Pan[1,2] Pang, Bo[3] Li, Gaiyun[1,2] Han, Yanming[1,2] Chu, Fuxiang[1,2]

第一作者：姜鹏;Jiang, Pan

通信作者：Han, YM[1];Chu, FX[1];Pang, B[2]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Xiangshan Rd, Beijing 100091, Peoples R China;[2]Natl Engn Res Ctr Low carbon & Efficient Utilizat, Xiangshan Rd, Beijing 100091, Peoples R China;[3]Stockholm Univ, Dept Mat & Environm Chem, Svante Arrheniusvag 16C, S-10691 Stockholm, Sweden

年份：2024

卷号：254

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20234715077808);Scopus(收录号：2-s2.0-85176774414);WOS:【SCI-EXPANDED(收录号:WOS:001114524500001)】；

基金：The authors acknowledge the support from the National Natural Science Foundation of China (No. 31890773 and 31890774) .

语种：英文

外文关键词：Lignin; Colloidal particles; Solvent fractionation; Element distribution

摘要：Colloidal lignin particles (CLPs) have sparked various intriguing insights toward bio-polymeric materials and triggered many lignin-featured innovative applications. Here, we report a multi-solvent sequential fractionation methodology integrating green solvents of acetone, 1-butanol, and ethanol to fractionate industrial lignin for CLPs fabrication. Through a rationally designed fractionation strategy, multigrade lignin fractions with variable hydroxyl group contents, molecular weights, and high purity were obtained without altering their original chemical structures. CLPs with well-defined morphology, narrow size distribution, excellent thermal stability, and long-term colloidal stability can be obtained by rational selection of lignin fractions. We further elucidated that trace elements (S, N) were reorganized onto the near-surface area of CLPs from lignin fractions during the formation process in the form of -SO42- and -NH2. This work provides a sustainable and efficient strategy for refining industrial lignin into high-quality fractions and an in-depth insight into the CLPs formation process, holding great promise for enriching the existing libraries of colloidal materials.