The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index.
Closed-Loop Recyclable Fully Bio-Based Epoxy Vitrimers from Ferulic Acid-Derived Hyperbranched Epoxy Resin
Abstract
Epoxy vitrimers with dynamic covalent networks enable reprocessing and recycling of epoxy thermosets. However, achieving high mechanical performance remains a challenge. In this work, ferulic acid-based hyperbranched epoxy resin (FEHBP) was synthesized to produce closed-loop recyclable and catalyst-free epoxy vitrimers without compromising its thermal and mechanical properties. The incorporation of FEHBP with a hyperbranched topological structure improved the tensile strength, modulus, and toughness of epoxy vitrimers through an in situ reinforcing and toughening mechanism. The hydroxyls of FEHBP catalyzed the dynamic transesterification and accelerated the reprocessing of epoxy vitrimers. Thus, the obtained epoxy vitrimers demonstrated excellent weldability, malleability, and programmability. Epoxy vitrimers with 10 phr FEHBP exhibited high tensile strength (126.4 MPa), usable T g (94 °C), fast stress relaxation (a relaxation time of 45 s at 140 °C) and a retention of tensile strength (above 88.3%) upon recycling. The degradation products were reused to produce new epoxy vitrimers under mild conditions with similar mechanical properties and thermal stability as the original epoxy vitrimers, leading to closed-loop recyclable, fully bio-based epoxy vitrimers with potential for industrial applications.
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Cites
Silica-Like Malleable Materials from Permanent Organic Networks
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Catalytic Control of the Vitrimer Glass Transition
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Current status of carbon fibre and carbon fibre composites recycling
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Self-citationVitrimers: directing chemical reactivity to control material properties
Guerre, M., Taplan, C., Winne, J. M., & Du Prez, F. E. (2020) · Chemical Science · doi:10.1039/d0sc01069c · Cited by 621
Cleavable comonomers enable degradable, recyclable thermoset plastics
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Functional epoxy vitrimers and composites
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Eugenol-Derived Biobased Epoxy: Shape Memory, Repairing, and Recyclability
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Self-citationRecyclable and Malleable Epoxy Thermoset Bearing Aromatic Imine Bonds
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Metadata
- Authors
- Zhong, L., Hao, Y., Zhang, J., Wei, F., Li, T., Miao, M., & Zhang, D.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2022-01-05
- Volume
- 55
- Issue
- 2
- Pages
- 595-607
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W4221033820
- Cited by
- 266
- References
- 58
- FWCI
- 17.34
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhong, L., Hao, Y., Zhang, J., Wei, F., Li, T., Miao, M., & Zhang, D. (2022). Closed-Loop Recyclable Fully Bio-Based Epoxy Vitrimers from Ferulic Acid-Derived Hyperbranched Epoxy Resin. Macromolecules. https://doi.org/10.1021/acs.macromol.1c02247
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