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2‐Oxazoline‐Terminated Polystyrene by Atom‐Transfer Radical Polymerization
Author(s) -
Malz H.,
Pionteck J.,
Pötschke P.,
Komber H.,
Voigt D.,
Lustoň J.,
Böhme F.
Publication year - 2001
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(20010701)202:11<2148::aid-macp2148>3.0.co;2-i
Subject(s) - oxazoline , polymer chemistry , atom transfer radical polymerization , chemistry , styrene , polystyrene , end group , polymerization , radical polymerization , ring opening polymerization , copolymer , organic chemistry , polymer , catalysis
Macromonomers of polystyrene containing one functional 1,3‐oxazoline end group were obtained by atom‐transfer radical polymerization (ATRP) using oxazoline‐containing initiators. 2‐(1‐Bromoethyl)‐1,3‐oxazoline ( 2b ) and 2‐(4‐(1‐bromoethyl)phenyl)‐1,3‐oxazoline ( 6 ) were prepared for this purpose. 2‐(1‐Bromoethyl)‐1,3‐oxazoline was prepared by the bromination of 2‐ethyl‐1,3‐oxazoline with N‐ bromosuccinimide (NBS). 2‐(4‐(1‐Bromoethyl)phenyl)‐1,3‐oxazoline was obtained by the treatment of 4‐(1‐bromoethyl)benzoic acid with ethanolamine and subsequent cyclization with SOCl 2 . Both initiators proved to be suitable for the ATRP of styrene. Oxazoline mono‐terminated polystyrenes with M̄ n between 2 000 and 3 500 g·mol –1 were obtained. The oxazoline groups were observed in the NMR spectra.