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Toward well-defined colloidal particles : Efficient fractionation of lignin by a multi-solvent strategy
- Jiang, Pan (author)
-
- Pang, Bo, 1990- (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
- Li, Gaiyun (author)
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- Han, Yanming (author)
- Chu, Fuxiang (author)
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- (creator_code:org_t)
- 2024
- 2024
- English.
- In: International Journal of Biological Macromolecules. - 0141-8130 .- 1879-0003. ; 254:3
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Keyword
- Lignin
- Colloidal particles
- Solvent fractionation
- Element distribution
Publication and Content Type
- ref (subject category)
- art (subject category)
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