A bisphthalonitrile monomer containing bismaleimide groups was synthesized using 4,4@-bismaleimidodiphenylmethane and 4-aminophenoxyphthalonitrile. The structure of the monomer was conΓrmed by elemental analysis and IR spectroscopy. With this monomer, a phthalocyanine resin containing bismaleimide groups was obtained by catalytic thermal polymerization. The structure of the resin was conΓrmed by IR spectroscopy. The characteristic absorption peak of nitrile groups at 2200 cm~1 disappeared in the IR spectra, showing that polymerization of monomer was complete. Thermogravimetry of the resin in air and was investigated ; the results show that this resin has N 2 excellent thermal and thermo-oxidative stabilities, and a high char yield in nitrogen (82Γ7%). In addition, a monomer solution in dimethylacetamide was Γowcoated on a glass strip to form a resin Γlm. The adhesion between Γlm and glass strip was Γrm, and the resin Γlm had strong resistance to saturated alkali solution. A solubility test showed that the resin possessed good chemical inertness.
Copper and aluminium strips were bonded using monomer solution. The singlelap shear strength of samples was tested after curing. The results demonstrated that the adhesion between resin and copper strips was stronger than with aluminium strips. The resin can be used as a heat-resistant adhesive.