Cyanate ester resin

A method for making a cyanate ester resin, comprising:

• reacting an arylorganometallic agent with a phosphorous halide in a solvent,
• wherein the arylorganometallic agent comprises at least one methoxyarylorganometallic agent,
• thereby forming methoxy functionalized triphenylphosphines with one to six meta-methoxy groups;
• reacting the methoxy functionalized triphenylphosphines including one to six meta-methoxy groups with an oxidizing agent, thereby forming a methoxy functionalized triphenylphosphine oxide including one to six meta-methoxy groups;
• reacting the methoxy functionalized triphenylphosphine oxide including one to six meta-methoxy groups with a dealkylating agent, thereby forming a hydroxy substituted triphenylphosphine oxide including one to six meta-hydroxyl groups;
• reacting the hydroxy substituted triphenylphosphine oxide including one to six meta-hydroxyl groups with a cyanating reagent and a base, thereby forming a cyanato substituted triphenylphosphine oxide including one to six meta-cyanato groups;
• and
• polymerizing the substituted triphenylphosphine oxide including one to six meta-cyanato groups, thereby forming the cyanate ester resin.