A novel benzoxazine monomer containing both maleimide and furan groups (HMPD-fa) was synthesized via a solution method.1H nuclear magnetic resonance spectroscopy (NMR) and Fourier transform infrared spectroscopy (FT-IR) were conducted to confirm the chemical structure of monomer.The curing behaviors were monitored by differential scanning calorimetry (DSC) and in situ FT-IR.The starting polymerization temperature of monomer was 201℃ and the narrow exothermic peak was centered at 223℃.Thermogravimetric analysis (TG) was also carried out to characterize its thermal property,indicating that the initial decomposition temperatures of 5% and 10% by weight were as high as 335℃ and 395℃,respectively,and char yield at 800℃ was 50%.
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基金资助
国家自然科学基金(52073125)
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