Improving the Transformation of Thermoplastic Polyesters into Vitrimers
Author Information
Author(s): Yuhka Shimizu, Mikihiro Hayashi
Primary Institution: Nagoya Institute of Technology
Hypothesis
The incorporation of pre-crosslinks in thermoplastic polyesters will enhance their self-transformation into vitrimers.
Conclusion
Incorporating pre-crosslinks into the starting polyesters significantly shortens the time required for cross-linking and improves the mechanical properties of the final products.
Supporting Evidence
- The presence of pre-crosslinks shortened the gelation time significantly.
- Mechanical properties improved with the incorporation of 4-epoxy units.
- Samples with higher fractions of 4-epoxy exhibited greater flow temperatures.
Takeaway
This study shows that adding special links to plastic can help it change shape faster and become stronger.
Methodology
The study involved synthesizing polyesters with varying fractions of tetra-functional epoxy monomers and evaluating their transformation performance through thermal, mechanical, and rheological analyses.
Limitations
The study primarily focused on transformation performance without detailed exploration of vitrimer properties.
Digital Object Identifier (DOI)
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