Rosin-Based Epoxy Vitrimers with Dynamic Boronic Ester Bonds.

ABSTRACT: Rosin is an abundantly available natural product. In this paper, for the first time, a rosin derivative is employed as the main monomer for preparation of epoxy vitrimers to improve the mechanical properties of vitrimers. Novel epoxy vitrimer networks with dynamic reversible covalent boronic ester bonds are constructed by a reaction between thiols in 2,2'-(1,4-phenylene)-bis (4-mercaptan-1,3,2-dioxaborolane) (BDB) as a curing agent and epoxy groups in the rosin derivative. The rosin-based epoxy vitrimer networks are fully characterized by Fourier transform infrared spectroscopy (FTIR), an equilibrium swelling experiment, and dynamic mechanical analysis (DMA). The obtained rosin-based epoxy vitrimers possess superior thermostability and good mechanical properties. Due to transesterification

SUBMITTER: Zeng Y 

PROVIDER: S-EPMC8512039 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature