Aromatic oxazolyl and carboxyl functionalized polymers by atom transfer radical polymerization

Abstract

The syntheses of aromatic oxazolyl functionalized chain end polystyrene and poly(methyl methacrylate) using an oxazolyl functionalized initiator in atom transfer radical polymerization were effected by the following methods: The synthesis of 2-[(4-bromomethyl)phenyl]-4,5-dihydro-4,4-dimethyloxazole from α-bromo-р-toluic acid. The preparation of well defined α-oxazolyl functionalized polymers using 2-[(4-bromomethyl)phenyl]-4,5-dihydro-4,4-dimethyloxazole as an oxazolyl functionalized initiator for the atom transfer radical polymerization of styrene and methyl methacrylate in the presence of copper(I)bromide /2,2'-bipyridine or copper (I) bromide/N,N,N',N",N"-pentamethyldiethylenetriamine catalyst system at temperature ranging between 90 °C-110 °C.