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Mechano-Programmable Circularly Polarized Luminescent Elastomers for Dynamic Information Encryption and Chiral Logic
Hui Wang1, Yifan Bai1, Bing-Hao Liu1
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
ACS Applied Materials & Interfaces
|April 14, 2026
Summary
Researchers developed new elastomers that change their circularly polarized luminescence (CPL) when stretched, enabling advanced anticounterfeiting. This material offers tunable, reversible CPL for dynamic information encryption.
Area of Science:
- Materials Science
- Polymer Chemistry
- Optoelectronics
Background:
- Continuous regulation of circularly polarized luminescence (CPL) using mechanical stimuli is crucial for advanced anticounterfeiting technologies.
- Developing materials with tunable CPL responses under mechanical stress presents significant challenges.
Purpose of the Study:
- To create mechanochemically responsive CPL elastomers for in situ, continuous regulation of optical signals.
- To develop a versatile platform for intelligent anticounterfeiting and chiral logic applications.
Main Methods:
- Synthesized elastomers by integrating rhodamine-based mechanophores (Rh) and rigid helical polyisocyanides (PI) into a flexible polymer matrix.
- Investigated the mechanical properties and CPL responses of the resulting elastomer under mechanical stress.
- Incorporated a benzothiadiazole (BTz) fluorophore to achieve multicolor CPL outputs.
Main Results:
- The elastomer exhibited efficient mechanophore activation, a robust chiral environment, and excellent mechanical properties (breaking strength ≈ 18 MPa, breaking strain ≈ 450%).
- Demonstrated force-dependent, continuous, and reversible CPL responses.
- Achieved multicolor CPL outputs (green, orange, red) under a single mechanical stimulus by incorporating BTz.
Conclusions:
- The developed elastomer provides a versatile platform for next-generation intelligent anticounterfeiting materials.
- The material enables mechano-regulated, multiband CPL capabilities for dynamic information encryption and chiral logic gates.
