Abstract
Lignin is the most abundant renewable natural source of aromatic compounds but is the least utilized biomass resource. In a drive to increase both the value and utilization of lignin, whilst simultaneously reducing the environmental impact of petroleum products, we have designed a solvent-resistant recyclable lignin-based vitrimer, which has excellent mechanical performance. The vitrimer, which contains 73.0% lignin, has very high tensile strength (up to 68 Mpa), high elongation at break (up to 80.0%), very good solvent resistance and multiple recycling options (hot press recycling, ethylene glycol recycling, alkali recycling). The lignin-based vitrimer can be prepared without the need for catalyst or hot press molding and can be photothermally bonded. When used as a glass coating or a rubber adhesive, it not only has very good solvent resistance, but can also be easily disassembled for recycling. This work provides an efficient and high value method for utilizing lignin and also provides practical solutions to the problems of environmental pollution caused by non-renewable plastics and under-use of biomass resources. • Vitrimer is prepared by lignin modification and self-crosslinking. • Catalyst-free ester exchange type Vitrimer. • Tough mechanical properties and multiple cycle options. • Good chemical solvent resistance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
