Bai Yun, Wang Huaiyu, He Jianghua, Zhang Yuetao
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin, 130012, China.
Angew Chem Int Ed Engl. 2020 Jul 6;59(28):11613-11619. doi: 10.1002/anie.202004013. Epub 2020 May 8.
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(NI Pr)Ph /(BHT)Al Bu )-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 =50) to be achieved with the highest reported block number (n=53) and molecular weight (M =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.
本文提出了一种基于N-(二苯基膦基)-1,3-二异丙基-4,5-二甲基-1,3-二氢-2H-咪唑-2-亚胺/二异丁基(2,6-二叔丁基-4-甲基苯氧基)铝(P(NiPr)Ph/(BHT)AlBu)的不朽受阻路易斯对(FLP)聚合策略，用于在室温下快速且可扩展地合成序列可控的多嵌段共聚物。该方法无需添加额外的引发剂或催化剂，也无需复杂的合成步骤，能够在30分钟内制备出具有最高报道嵌段数(n=53)和分子量(M =310 kg mol)的三十三嵌段共聚物(n=53, k=4, dp =50)。更重要的是，这种FLP聚合策略通过精确调整单体序列和嵌段数，能够制备出具有定制性能的多嵌段共聚物。
