Synthesis and characterization of a novel functioal monomer containing two allylphenoxy grous and one S-triazine ring and the properties of its coplymer with 4,4'-bismaleimidodiphenylmethane (BMDPM)

摘要

A novel modifier for bismaleimide (BMI),2,4-di-(2-allylphenoxy)-6-(2-(na-hthyloxy)-1,3,5-triazine(DAPN-T) with higher yield was pepared inone-pot by reacting cyanuric chloride with 2-allylphenol at first,and then by directly treating the adduct with 2-naphthol without separation.The chemical structure of the monomer was characterized by FTIR,mass spectrum,~1H NMR and ~(13)C NMR.By means of differential scanning calorimeter,the thermo-homopolymerization behavior of DAPNPT was investigated and theresults showed that DAPNPT did no tpolymerize at a range of temperatures from 50 to 250degC.The properties of the DAPN-T-modified 4,4'-bismaleimidodi-phenylmethane (BMDPM) resins were also studied.The results showed that DAPNPT could effectively improve mechanical properties of BMDPM resin without greatly decreasing heat resistance of the resin.Better results were obtained when the molar ratio of DAPN-T/BMDPM was 1:2.