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Synthesis of well‐defined norbornenyl‐terminated poly(alkyl methacrylate)s by group transfer polymerization and their grafting‐through ring‐opening metathesis polymerization
Author(s) -
Lee Gue Seon,
Kim Jeung Gon
Publication year - 2020
Publication title -
journal of polymer science
Language(s) - English
Resource type - Journals
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pol.20200140
Subject(s) - polymer chemistry , polymerization , trimethylsilyl , ring opening metathesis polymerisation , chemistry , metathesis , chain transfer , ring opening polymerization , methacrylate , alkyl , polymer , radical polymerization , organic chemistry
Highly efficient syntheses of poly(alkyl methacrylate)‐based brush polymers were accomplished via a facile group transfer polymerization (GTP) and a consecutive grafting‐through ring‐opening metathesis polymerization. The GTP system, composed of the norbornenyl‐methyl trimethylsilyl ketene acetal initiator and the N ‐(trimethylsilyl) bis(trifluoromethanesulfonyl)imide catalyst, rapidly and quantitatively generates norbornenyl‐terminated poly(alkyl methacrylate) macromonomers with very narrow polydispersities ( M w / M n < 1.10). The ring‐opening metathesis polymerization of methacrylate macromonomers using Grubbs third generation catalyst successfully generated a group of methacrylate‐based brush polymers, which assured the high quality of the macromonomers obtained from GTP.