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Synthesis of ABC and CABAC Triphilic Block Copolymers by ATRP Combined with ‘Click’ Chemistry
Author(s) -
Kyeremateng Samuel Oppong,
Amado Elkin,
Blume Alfred,
Kressler Jörg
Publication year - 2008
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.200800058
Subject(s) - copolymer , polymer chemistry , click chemistry , hydrolysis , alkyne , methyl methacrylate , chemistry , methacrylate , materials science , organic chemistry , polymer , catalysis
Abstract ATRP using poly(propylene oxide) monofunctional macroinitiator was carried out with solketal methacrylate (SMA) and the non‐reactive PPO having two N 3 terminal groups was removed by dissolution in an excess of n ‐hexane. The resulting azido terminated AB diblock copolymer was ‘clicked’ with an α ‐alkyne fluorinated compound, followed by acid hydrolysis of the SMA units, a triphilic ABC triblock copolymer was prepared. ATRP of SMA with a difunctional PPO macroinitiator to give ABA triblock copolymer was also carried out. The terminal Br was again exchanged with N 3 , ‘clicked’ with the α ‐alkyne fluorinated compound and likewise hydrolyzed to give a triphilic CABAC pentablock copolymer, i.e., hydrophilic, oleophilic, and fluorophilic blocks were combined.