Preparation method of modified low-molecular-weight bifunctional polyphenyl ether oligomer with vinyl-terminated polyphenyl ether

The invention discloses a preparation method of a modified low-molecular-weight bifunctional polyphenyl ether oligomer with vinyl-terminated polyphenyl ether. The material produced by the invention has good performance, strong dielectric property, good insulating property and extremely low hygroscopicity, and the reliability of a PCB product is improved. The product produced by the invention has low solution viscosity, excellent solubility and good fluidity, has excellent solubility in organic solvents such as toluene, methyl ethyl ketone and the like, and is suitable for being used together with styrene, allyl methacrylic acid and other unsaturated polyester monomers and resins. The product produced by the invention can effectively enhance the performance of epoxy resin used in electronic packaging, increase the thermal, dielectric, mechanical properties, flame retardant properties and hygroscopicity of the epoxy resin, and is suitable for packaging of electronic power supplies of PCBs, copper-clad plates, 5