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Synthesis of Poly( N ‐vinylamide)s and Poly(vinylamine)s and Their Block Copolymers by Organotellurium‐Mediated Radical Polymerization
Author(s) -
Fan Weijia,
Yamago Shigeru
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201902940
Subject(s) - copolymer , dispersity , polymer chemistry , monomer , polymerization , chemistry , hydrolysis , polymer , radical polymerization , organic chemistry
Abstract Controlled polymerization of acyclic N ‐vinylamides, that is, N ‐methyl‐ N ‐vinylacetamide (NMVA), N ‐vinylacetamide (NVA), and N ‐vinylformamide (NVF), by organotellurium‐mediated radical polymerization (TERP) is reported. The corresponding poly( N ‐vinylamide)s with controlled molecular weight and low dispersity ( Ð <1.25) were obtained with high monomer conversion in all cases. This is the first report on the controlled polymerization of NVF. Hydrolysis of the polymers, in particular PNVF, occurred quantitatively under mild reaction conditions, giving structurally controlled poly(vinylamine)s. Block copolymers containing poly( N ‐vinylamide) and poly(vinylamine) segments were also synthesized in a controlled manner.