Journal Article

PUBDB-2026-02727

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A Comparative Study of Lignin-Based Thermoset Properties: Mildly Extracted Organosolv Lignin versus Technical Kraft Lignin

Brandt, L.Extern* ; Truncali, A.Extern* ; Andriani, F.Extern* ; Sochor, B.Extern*DESY* ; Harder, C.Extern* ; Koyiloth Vayalil, S.Extern*DESY* ; Müller-Buschbaum, P.Extern* ; Lawoko, M.Extern* ; Roth, S. V.XFEL.EU*DESY* ; Johansson, M. (Corresponding author)Extern*

2026
ACS Publ. Washington, DC

This record in other databases:  

Please use a persistent id in citations: doi:10.1021/acssuschemeng.6c00236  doi:10.3204/PUBDB-2026-02727

Abstract: Lignin is a highly abundant, renewable biopolymer with the potential to replace fossil-based aromatic building blocks in polymeric materials. However, the structural complexity of lignin, arising from its heterogeneous interunit linkages and irregular architecture, complicates the assessment of structure–property relationships. In this work, a lignin with a high content of the β-O-4′ interunit linkage, prevalent in native lignin, is utilized to reveal how the molecular structure governs the mechanical performance of lignin-based thermosets. The lignin was modified with allyl functionalities and thermally cross-linked using thiol–ene chemistry. A comprehensive structural analysis and characterization show that maintaining a high β-O-4′ content results in networks that exhibit both high modulus and ductile behavior (E: 1–3 GPa, and εb > 10%). This effectively addresses the trade-off between stiffness and ductility often encountered in technical lignin-based materials, having strain-at-break values below 4%. These findings highlight molecular structure as a crucial parameter for optimizing mechanical performance and tailoring lignin-based materials for high-performance applications, such as organic coatings or adhesives.

---

Contributing Institute(s):

1. FS DOOR-User (FS DOOR-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 2026

---

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

---