High-strength heat-resistant vinyl ester resin and preparation process thereof

The invention belongs to the field of organic high-molecular compounds, and discloses high-strength heat-resistant vinyl ester resin and a preparation process thereof. The four-functional-group high-strength heat-resistant vinyl ester resin is prepared by the following steps: reacting terminal-NCO of diisocyanate with side-OH of bisphenol A epoxy resin to prepare four-functional-group epoxy resin, and then carrying out ring-opening addition on methacrylic acid and an epoxy matrix to generate the four-functional-group high-strength heat-resistant vinyl ester resin. The high-strength heat-resistant vinyl ester resin disclosed by the invention has the excellent properties of high functional group content, good mechanical property and corrosion resistance, low viscosity, relatively good toughness and capability of resisting high temperature of 210 DEG C or above; and the resin is simple in synthesis process, stable in reaction, stable in product performance and capable of realizing industrial production. 本发明属于有机高