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Rapid and Scalable Access to Sequence‐Controlled DHDM Multiblock Copolymers by FLP Polymerization
Author(s) -
Bai Yun,
Wang Huaiyu,
He Jianghua,
Zhang Yuetao
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202004013
Subject(s) - copolymer , monomer , polymerization , sequence (biology) , polymer chemistry , chemistry , catalysis , frustrated lewis pair , lewis acids and bases , polymer , organic chemistry , biochemistry
An immortal N ‐(diphenylphosphanyl)‐1,3‐diisopropyl‐4,5‐dimethyl‐1,3‐dihydro‐2 H ‐imidazol‐2‐imine/diisobutyl (2,6‐di‐tert‐butyl‐4‐methylphenoxy) aluminum (P(NI i Pr)Ph 2 /(BHT)Al i Bu 2 )‐based frustrated Lewis pair (FLP) polymerization strategy is presented 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 a tripentacontablock copolymer ( n =53, k =4, dp n =50) to be achieved with the highest reported block number ( n =53) and molecular weight ( M n =310 kg mol −1 ) 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.