Three kinds of alkyne monomers with ester groups and three kinds of alkyne monomers with ether groups were synthesized

and characterized by nuclear magnetic resonance spectroscopy(1H NMR)

fourier transform infrared spectroscopy(FT-IR)

mass spectrometry (MS) and liquid chromatography (LC). Three poly(triazole ester) resins (PTAEs) and three poly(triazole ether) resins (PTAOs) were prepared from these alkyne monomers and polyfunctional azide monomers. The curing behavior

mechanical properties

heat resistance and thermal stability of the resins were characterized by differential scanning calorimetry (DSC)

FT-IR

dynamic mechanical thermal analysis (DMA)

mechanical tests

and thermogravimetric analysis(TGA). The results show that PTAE and PTAO resins can be dissolved in common organic solvents and can be cured at low temperature (60℃). The flexural strength of cured resins exceeds 100 MPa

and the highest 158 MPa. The glass transition temperature (T g) of cured resins exceeds 180℃

and the highest 251℃. The thermal decomposition temperature(T d5) exceeds 300℃

and the highest 360℃. The mechanical properties

heat resistance and thermal stability of the cured PTAO resins are higher than those of the cured PTAE resins.