Chemically Recyclable and Upcyclable Epoxy Resins Derived from Vanillin
نویسندگان
چکیده
Epoxy resins constitute a very significant portion of all high-performance plastics due to their excellent thermal and mechanical properties that appear in wide range applications. Nevertheless, traditional epoxy networks show limitations regarding chemical recycling covalently crosslinked structures. The current methods recycle are not indeed through sustainable ways, but this issue could be solved by developing smart monomers with functional groups, which can switched between polymerized depolymerized states. Herein, we developed two bio-based liquid based on vanillin structures containing aldehyde, acetal, oxirane-ring functionalities. These were solvent-free conditions using commercially available diamines, resulting double-dynamic imine-acetal-containing thermosets. combine the systems dynamic polymers. Most importantly, such thermosets fully into vanillin, reused for preparation original monomers, mixture well-defined polyols, was upcycled polyurethane.
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ژورنال
عنوان ژورنال: ACS Sustainable Chemistry & Engineering
سال: 2023
ISSN: ['2168-0485']
DOI: https://doi.org/10.1021/acssuschemeng.3c00761