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采用2-甲基-2,5-二氧-1,2-氧磷杂环戊烷(OP)、乙二醇、双酚A(BPA)和碳酸二苯酯(DPC),通过熔融酯交换法合成含磷聚碳酸酯(PC)。分别通过傅里叶变换红外光谱仪(FT-IR)、凝胶渗透色谱仪(GPC)、示差扫描量热仪(DSC)和热重分析仪(TG)对合成得到的含磷PC进行了结构表征、分子量测定及热稳定性测试。结果表明:所得含磷PC的玻璃化转变温度比不含磷PC稍高,且磷含量在0.72%时出现最大值(117.8℃);对于含磷PC(磷含量0.72%),其初始分解温度和700℃残炭率(分别为366.1℃和19.28%)均高于不含磷PC(分别为286.6℃和17.54%),具有更好热稳定性。
2-methyl-2,5-dioxo-1,2-oxaphospholane (OP), ethylene glycol, bisphenol A (BPA) and diphenyl carbonate (DPC) Synthesis of phosphorus-containing polycarbonate (PC). The synthesized phosphorus-containing PC was characterized by Fourier transform infrared spectroscopy (FT-IR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TG) , Molecular weight determination and thermal stability test. The results showed that the glass transition temperature of the obtained phosphorus-containing PC is slightly higher than that of the non-phosphorus-containing PC and the maximum value is 117.8 ℃ when the phosphorus content is 0.72%. For the phosphorus-containing PC (phosphorus content 0.72%), the initial decomposition temperature And carbon residue at 700 ℃ (366.1 ℃ and 19.28% respectively) were higher than that of non-phosphorus-containing PC (286.6 ℃ and 17.54% respectively), which showed better thermal stability.