Polybenzoxazine-based covalent adaptable networks: A mini-review

Auteurs

Adjaoud A., Puchot L., Verge P.

Référence

Polymer, vol. 287, art. no. 126426, 2023

Description

Benzoxazines represent a class of thermoset resins known for their exceptional thermal, fire, and mechanical properties. These resins find wide applications in various industries, including composites and electronic components. However, like conventional thermosets, benzoxazines have limitations in terms of end-of-life options, typically being landfilled or incinerated. To address this concern, researchers have been exploring the incorporation of dynamic bonds into the structure of polybenzoxazines to add functionalities such as reprocessability, self-healing, or recycling capabilities, and to develop polybenzoxazine-based covalent adaptable networks (CANs). This mini-review offers an overview of recent endeavors focused on the introduction of dynamic bonds within polybenzoxazine structures. It emphasizes the synergies between the molecular structure of benzoxazines and dynamic exchanges, such as transesterification or disulfide metathesis, and provides a comparative summary of the properties achieved by the materials developed in this context. By leveraging the strengths of benzoxazine structures, this mini-review aims to foster the exploration and development of innovative approaches that combine the unique properties of benzoxazines and CANs, enabling more sustainable and environmentally friendly materials.

Lien

doi:10.1016/j.polymer.2023.126426