The viscosity,reactivity and gel time of novolac cyanate ester resin synthesized by a modified cyanogens halide-phenol method were characterized.

• 结果表明,固化气氛对酚醛型氰酸酯的反应活性有着显著的影响,在空气气氛中的凝胶时间远小于惰性气氛的凝胶时间。