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Rosin-Based Epoxy Vitrimers with Dynamic Boronic Ester Bonds.
Yanning Zeng1, Jiawei Li1, Shuxin Liu1
1Key Laboratory of New Processing Technology for Nonferrous Metal and Materials (Ministry of Education), College of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China.
Polymers
|October 13, 2021
Summary
This study introduces novel epoxy vitrimers derived from rosin, a natural product. These rosin-based vitrimers exhibit enhanced mechanical properties, superior thermostability, and remarkable recyclability, offering a sustainable alternative for advanced polymer applications.
Area of Science:
- Polymer Chemistry
- Materials Science
- Sustainable Chemistry
Background:
- Rosin, a natural and abundant resource, is explored as a primary monomer for advanced polymer development.
- Traditional vitrimers often face limitations in mechanical properties and recyclability.
- Developing sustainable and high-performance polymers is a key challenge in materials science.
Purpose of the Study:
- To synthesize novel epoxy vitrimers using a rosin derivative as the main monomer.
- To investigate the mechanical properties, thermostability, and dynamic characteristics of these rosin-based vitrimers.
- To evaluate the potential for welding, recycling, self-healing, and shape memory in the fabricated polymer networks.
Main Methods:
- Synthesis of epoxy vitrimer networks via reaction between a rosin derivative and a boronic ester curing agent (BDB).
- Characterization using Fourier transform infrared spectroscopy (FTIR), equilibrium swelling, and dynamic mechanical analysis (DMA).
- Evaluation of welding efficiency, reprocessing capabilities, and chemical degradation.
Main Results:
- Successfully prepared rosin-based epoxy vitrimer networks with dynamic reversible covalent boronic ester bonds.
- Achieved superior thermostability and good mechanical properties in the synthesized vitrimers.
- Demonstrated significant welding efficiency (>93%) and recyclability with property restoration after reprocessing.
Conclusions:
- Rosin derivatives are effective monomers for creating high-performance epoxy vitrimers.
- The dynamic boronic ester bonds enable unique properties like welding, recycling, and self-healing.
- These rosin-based vitrimers offer a sustainable pathway for advanced materials with tunable properties.
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