Rapid and Scalable Access to Sequence‐Controlled DHDM Multiblock Copolymers by FLP Polymerization

Here we present an"immortal" N -(diphenylphosphanyl)-1,3-diisopropyl-4,5-dimethyl-1,3-dihydro-2H -imidazol-2-imine/diisobutyl (2,6-di-tert-butyl-4-methylphenoxy) aluminum (P(NIiPr)Ph2/(BHT)AliBu2)-based frustrated Lewis pair (FLP) polymerization strategy for rapid and scalable synthesis of the sequence-controlled multiblock copolymers at room temperature. Without addition of extra initiator or catalyst and complex synthetic procedure, this method enabled us to achieve a tripentacontablock copolymer (n = 53, k = 4, dp n = 50) with the world's highest block number (n = 53) and molecular weight (M n = 310 kg/mol) within 30 min. More importantly, this FLP polymerization strategy provided access to the multiblock copolymers with tailored properties by precisely adjusting the monomer sequence and block numbers.