We synthesized a boroxole-containing styrenic monomer that can be polymerized by the reversible addition–fragmentation and chain transfer (RAFT) method. Poly (styreneboroxole)(PBOx) and its block copolymers with a poly (ethylene glycol)(PEG) as a hydrophilic block displayed binding to monosaccharides in phosphate buffer at neutral pH, as quantified by Wang's competitive binding experiments. By virtue of a controlled radical ...