Vanillin-Based Polyimine Vitrimer: Self-Healing and Physical Properties

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Abstract:

In this research, a new type of trifunctional aldehyde derived from waste biological resources (vanillin) was developed. Subsequently, this trifunctional aldehyde was reacted with amines to prepare a polyimine vitrimer with dynamic covalent bonds. The obtained polyimine vitrimer exhibits excellent mechanical and self-healing properties and thermal stability, with a tensile strength of 49.81 MPa and the char yield reaches 55.75%. Through this study, we developed a simple, quick and gentle way to prepare re-processable vitrimer with good physical properties. Moreover, the use of biological resources as monomers is of great significance for waste recycling and reuse.

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Materials Science Forum (Volume 1060)

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69-74

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May 2022

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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