Fluorescent phosphine oxide-containing hyperbranched polyesters: design, synthesis and their application for Fe3+detection

Herein, fluorescent phosphorus-containing hyperbranched polyesters (HBPs) were synthesized via the solvent-free polycondensation of phosphine oxide-based AB 2 monomer (A: carboxyl or ester; B: hydroxyl) by adding trimethylolpropane as the core for the first time.