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Orthogonal Synthesis of Block Copolymer via Photoinduced CuAAC and Ketene Chemistries
Author(s) -
Tasdelen Mehmet Atilla,
Taskin Omer Suat,
Celik Cumali
Publication year - 2016
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201500563
Subject(s) - copolymer , atom transfer radical polymerization , ketene , ethylene glycol , azide , dispersity , polymer chemistry , polystyrene , cycloaddition , chemistry , polymerization , materials science , photochemistry , combinatorial chemistry , organic chemistry , catalysis , polymer
A novel route for the synthesis of poly(ethylene glycol)‐ b ‐polystyrene copolymer, starting from commercially available poly(ethylene glycol) methyl ether and azido terminated polystyrene prepared by atom transfer radical polymerization and subsequent nucleophilic substitution, is applied with simplicity and high efficiency. The combination of photoinduced copper (I)‐catalyzed alkyne‐azide cycloaddition (CuAAC) and ketene chemistry reactions proceeds either simultaneously or sequentially in a one‐pot procedure under near‐visible light irradiation. In both cases, excellent block copolymer formations are achieved, with an average molecular weight of around 7000 g mo1 −1 and a polydispersity index of 1.20.