Fluorescent aliphatic hyperbranched polyether: chromophore-free and without any N and P atoms

The strong fluorescence, in both the solution and the bulk state, of a chromophore-free aliphatic hyperbranched polyether which does not contain N and P atoms was reported for the first time. Effects of concentration and solvent solubility were measured. Its ethanol solution shows a strong blue-green fluorescence ( Y u = 0.11-0.39), and its fluorescence shows a strong selective quenching with respect to Fe 3+ . An unusual fluorescent aliphatic hyperbranched polyether epoxy which does not have N and P atoms was reported for the first time.