Journal Article

PUBDB-2025-00215

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Allylation and Thermosetting of Acetosolv Wheat Straw Lignin

Truncali, A.Extern* ; Di Francesco, D. ; Margarita, C. ; Ribca, I.Extern* ; Brandt, L.Extern* ; Sochor, B.Extern*DESY* ; Roth, S. V.XFEL.EU*DESY* ; Johansson, M. (Corresponding author)Extern* ; Lundberg, H. (Corresponding author)

2024
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/cssc.202402051  doi:10.3204/PUBDB-2025-00215

Abstract: The acetosolv extraction, allylation and subsequent cross-linking of wheat straw lignin to thermoset biomaterials is herein described. The extraction temperature proved to be of great importance for the quality of the resulting lignin, with moderate temperature being key for preservation of β-O-4’ linkages. The allylation of the acetosolv lignin was carried out using three different synthetic strategies, resulting in selective installation of either benzylic or phenolic allyl ethers, or unselective allylation of various hydroxyl groups via etherification and carboxyallylation. The different allylation protocols employed either allyl alcohol, allyl chloride, or diallylcarbonate as allyl precursors, with the latter resulting in the highest degree of functionalization. Selected allylated acetosolv lignins were cross-linked using a thiol-ene approach and the lignin with the highest density of allyl groups was found to form a cross-linked thermoset material with properties comparable to kraft lignin-based analogues.

Note: online first

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. PETRA-D (FS-PETRA-D)
3. Sustainable Materials (FS-SMA)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. SWEDEN-DESY - SWEDEN-DESY Collaboration (2020_Join2-SWEDEN-DESY) (2020_Join2-SWEDEN-DESY)

Experiment(s):

1. PETRA Beamline P03 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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