Synthesis and characterization of a partial-conjugated hyperbranched poly(p-phenylene vinylene) (HPPV)

A novel partial-conjugated HPPV has been designed and easily synthesized from A2 + B3 monomers, employing distrylbenzene, an oligomer of poly(p-phenylene vinylene) with high fluorescence quantum yield, as one of starting materials. HPPV was characterized by FT-IR, H-NMR, GPC and elemental analysis. Its properties, such as thermal, electrochemical and photoluminescent, etc., have been investigated systematically. HPPV exhibits good solubility and processability, a high glass transition temperature (Tg) and high fluorescence quantum yield in chloroform solution (much higher than fully conjugated hyperbranched and linear PPV).