One-step synthesis of sequence-controlled multiblock polymers with up to 11 segments from monomer mixture.

ABSTRACT: Switchable polymerization holds considerable potential for the synthesis of highly sequence-controlled multiblock. To date, this method has been limited to three-component systems, which enables the straightforward synthesis of multiblock polymers with less than five blocks. Herein, we report a self-switchable polymerization enabled by simple alkali metal carboxylate catalysts that directly polymerize six-component mixtures into multiblock polymers consisting of up to 11 blocks. Without an external trigger, the catalyst polymerization spontaneously connects five catalytic cycles in an orderly manner, involving four anhydride/epoxide ring-opening copolymerizations and one L-lactide ring-opening polymerization, creating a one-step synthetic pathway. Following this autotandem catalysis, reaso

SUBMITTER: Xia X 

PROVIDER: S-EPMC8748456 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature