ABSTRACT To suppress phase separation and improve fluorophore dispersion in physically blended white‐light‐emitting polymer materials, while also achieving stretchability and repairability, reversibly interlocked macromolecular networks (RILNs) are employed in this work. A stretchable, self‐healable, and robust RILNs‐based white‐light material with adjustable multi‐color fluorescence is synthesized from a Schiff base bond crosslinked single network containing red‐light‐emitting and green‐light‐emitting groups and a boronic ester bond crosslinked epoxy network carrying blue‐light‐emitting side chains. The interlocking network's phase separation suppression effect reduces aggregation‐induced quenching of the incorporated luminophores, thereby improving white‐light regulation convenience and achieving an ultra‐high white‐light quantum yield of 58.1% for polymer‐based materials (photoluminescence luminance = 359 cd m −2 under 420 nm excitation). The resulting materials also show good mechanical properties (tensile strength = 5.5 MPa, elongation at break = 78.5%), stretchability, fatigue resistance, self‐healability and recyclability. Benefited from the reversible exchange reactions of built‐in reversible covalent bonds at moderate temperature, the mechanical and optical properties of the recycled materials remain nearly unchanged. The design provides a specific strategy for constructing multifunctional polymer white‐light materials, with the potential to expand their scope and applications.
Deng et al. (2026) studied this question.