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6,6′‐Bisfunctionalized 2,2′‐bipyridines as metallo‐supramolecular initiators for the living polymerization of oxazolines
Author(s) -
Hochwimmer Georg,
Nuyken Oskar,
Schubert Ulrich S.
Publication year - 1998
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/(sici)1521-3927(19980601)19:6<309::aid-marc309>3.0.co;2-g
Subject(s) - monomer , polymer chemistry , polymerization , copolymer , supramolecular chemistry , bipyridine , polymer , living polymerization , chemistry , cationic polymerization , metal , molecule , radical polymerization , organic chemistry , crystal structure
[Cu(I) {6,6′‐bis(bromomethyl)‐2,2′‐bipyridine} 2 ](PF 6 ) complexes were used as metallo‐supramolecular initiators for the polymerization of 2‐oxazolines resulting in defined polymers with a central 6,6′‐disubstituted 2,2′‐bipyridine unit. The living character of the polymerization was demonstrated with the linear relationship between the weight‐average molecular weight M̄ w and the [monomer]/[initiator] ratio as well as in the synthesis of block copolymers. The metal ions could be removed resulting in uncomplexed polymers with a free central metal binding unit.