Regulating Degradation Pathways of Polymers by Radical‐Triggered Luminescence

Abstract Understanding the radical behaviours during polymer degradation is beneficial to unveil and regulate pathways of polymers achieve a sustainable development. However, it long‐standing challenge study owing ultra‐short lifetime transient radicals generated degradation. In this contribution, we have proposed radical‐triggered luminescence monitor without/with addition inorganic additives. It was disclosed that pure showed single sigmoidal dynamic curve from peroxy (ROO⋅) emissions, leading exponential proliferation for evolution. Alternatively, with additives, layered double hydroxides (LDHs) positively charged Al centers, could be modulated into dynamics, involving main product alkoxy (RO⋅) activation energy 40.2 kJ/mol small amount ROO⋅ 76.3 kJ/mol, respectively. Accordingly, additive‐regulated exhibit prominently anti‐degradation behaviours. This work deep understanding mechanisms degradation, rational design polymers.