Macromolecular Chemistry and Physics
Bunyamin Karagoz, Deniz Gunes, Niyazi Bicak
Synthesis and crosslinking copolymerization of 2-bromoethylmethacrylate in aqueous suspension is described for preparing bromoalkyl-functional microbeads (125420µm). Highly transparent microspheres with a density of accessible bromoethyl groups of 1.55mmol·g1 were prepared in the suspension, stabilized with poly(N-vinyl pyrrolidone), by using methyl methacrylate as diluting co-monomer and ethylene glycol dimethacrylate as crosslinker. Bromoalkyl groups on the microparticles were employed as initiation sites for either surface-initiated ATRP of glycidyl methacrylate or ring-opening polymerization of 2-methyl-2-oxazoline to generate epoxy- and N-acetylethyleneimine-functional hairy grafts, tethered to the particle surfaces with hydrolytically stable linkages.