Reconciling Ultrahigh-Temperature Capability and Chemical Degradation in Bismaleimide Diphenyldisulfide-Based Polymers and Composites
Abstract
Despite their widespread application in automotive, maritime, and aerospace industries, conventional thermosets and their composites suffer from nonrecyclability. Current recyclable covalent adaptable networks offer a solution but are limited by poor heat resistance. Herein, we report a diphenyldisulfide-based polymer (BMS-DB) that overcomes this limitation. The BMS-DB polymers deliver an ultrahigh T g of ∼275 °C (high storage modulus ( E ′) of ∼410 MPa at 325 °C), robust mechanical properties, and rapid degradability. As a matrix for carbon fiber composites, it enables an unprecedented T g of ∼305 °C and nondestructive recycling. This combination of ultrahigh-temperature capability and closed-loop recyclability makes these materials ideal candidates for severe-service environments such as aerospace.
Fields of Study & Subjects
Polymer composites and self-healing
Covalent Organic Framework Applications
Synthesis and properties of polymers
Publication details
- Journal / source
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Volume
- 18
- Issue
- 6
- Pages
- 10409–10415
- Publication date
- 4 February 2026
- Language
- EN