Heterocycle-based dynamic covalent chemistry for dynamic functional materials

Heterocycle-based dynamic covalent chemistry for dynamic functional materials

Blog Article

Abstract Dynamic covalent chemistry, which renders reusable and degradable thermoset polymers, is a promising tool for solving the global problem of plastic pollution.Although dynamic covalent chemistry can construct dynamic polymer networks, it rarely introduces 3 piece horse wall art other functions into polymers, which limits the development of dynamic functional materials.Herein, we develop heterocycle-based dynamic covalent chemistry and demonstrate the reversibility of the aza-Michael addition reaction between functional heterocycle dihydropyrimidin-2(1H)-thione and electron-deficient olefins.Our method produces a degradable linear polymer and recyclable and self-healable j&d manufacturing website crosslinked polymers similar to traditional dynamic covalent chemistry, but the heterocycles endow the polymer with excellent ultraviolet-blocking and high-energy blue light-blocking abilities, and tunable fluorescence and phosphorescence properties.These are difficult to create with ordinary dynamic covalent chemistry.

This proof-of-concept study provides insights into heterocycle-based dynamic reactions, and may prompt the development of dynamic chemistry and dynamic functional materials.