Open-Air Chemical Recycling: Fully Oxygen-Tolerant ATRP Depolymerization.

ABSTRACT: While oxygen-tolerant strategies have been overwhelmingly developed for controlled radical polymerizations, the low radical concentrations typically required for high monomer recovery render oxygen-tolerant solution depolymerizations particularly challenging. Here, an open-air atom transfer radical polymerization (ATRP) depolymerization is presented, whereby a small amount of a volatile cosolvent is introduced as a means to thoroughly remove oxygen. Ultrafast depolymerization (i.e., 2 min) could efficiently proceed in an open vessel, allowing a very high monomer retrieval to be achieved (i.e., ∼91% depolymerization efficiency), on par with that of the fully deoxygenated analogue. Oxygen probe studies combined with detailed depolymerization kinetics revealed the importance of the low-boilin

SUBMITTER: Mountaki SA 

PROVIDER: S-EPMC11258787 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature