Premium
Cobalt‐Catalyzed Carbonylative Copolymerization of N ‐Alkylazetidines and Tetrahydrofuran
Author(s) -
Liu Guosheng,
Jia Li
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200502116
Subject(s) - copolymer , polymerization , amide , tetrahydrofuran , cobalt , polymer , catalysis , polymer chemistry , chemistry , azetidine , organic chemistry , solvent
A living polymerization : Poly(amide‐ co ‐ester)s with either gradient or segmental ester distribution are formed by the cobalt‐catalyzed polymerization of azetidine in THF in the absence or presence of LiI, respectively. Periodic addition of azetidine results in copolymers with multiple amide blocks separated by ester segments (see picture). The polymers undergo a two‐stage chemical degradation.