High performance bismaleimide resins modified by novel allyl compounds based on polytriazoles

New poly(1,2,3-triazole)s functionalized with allyl groups were prepared by the 1,3-cycloaddition reaction (click reaction) of azido-imides to bispropargyl monomers containing allyl groups. The copolymers of 4,4'-bismaleimidodiphenylmethane with allylated polytriazoles were prepared and their properties investigated. Modified bismaleimide resins had excellent processing compared with neat bismaleimides, especially improved olubility and faster thermal polymerization rate. In addition, the new cured systems had good thermal and dielectric properties (dielectric constant at 1 kHz ranged between 3.09 and 3.39, except the polymer with aliphatic segment instead of the imide group that had a higher constant, namely 4.6).