Hyperbranched polybenzene, preparation method and use thereof

Abstract

The invention provides a hyperbranched polybenzene, preparation method and use thereof. The method includes: under an inert gas atmosphere, a monomer with two internal acetylenyl groups undergoes polymerization reaction in a solvent in the presence of a catalyst to obtain the hyperbranched polybenzene. The monomer in the polymerization reaction is a monomer with internal acetylenyl groups, and the catalyst is a nonmetallic catalyst p-toluenesulfonic acid. The polymerization reaction has simple conditions, is convenient and environmentally friendly, and overcomes the problem that the catalyst residue caused by the use of metal catalyst in conventional cyclotrimerization reaction, which affects the polymer properties. Due to the typical aggregation-induced emission (AIE)-active tetraphenyl ethylene units, the tetraphenylethylene-containing hyperbranched polymers of the present invention has high fluorescence quantum yields in the aggregation state and has fully conjugated structures. The hyperbranched polybenzenes can be used as chemical sensors and have an application prospect for polymer light-emitting diodes.

Dependencies are inferred from the claim text.