含磷聚碳酸酯的合成及催化剂对产物性能的影响  

Synthesis of Phosphorus-containing Polycarbonate and the Influence of Catalysts on Properties of Product

作　　者：蔡少君[1] 宋琳[1] 刘学清[1] 刘继延[1] 

机构地区：[1]江汉大学光电化学材料与器件省部共建教育部重点实验室,化学与环境工程学院,湖北武汉430056

出　　处：《江汉大学学报（自然科学版）》2014年第5期5-9,共5页Journal of Jianghan University：Natural Science Edition

基　　金：武汉市科技局科技攻关计划项目(201250499145-4);湖北省教育厅科学技术研究项目(B2014071)

摘　　要：以双酚A(BPA)、碳酸二苯酯(DPC)和亚磷酸三苯酯为原料,分别以氢氧化锂(Li OH)和乙酸锂(Li-Ac)为催化剂,通过熔融酯交换法合成得到含磷聚碳酸酯。分别通过红外光谱仪、凝胶渗透色谱仪、示差扫描量热仪和热重分析仪对所得产物结构、分子量及分子量分布、玻璃化温度和热稳定性进行了表征和测定。结果表明,反应5.5 h,Li OH催化体系所得产物数均分子量为8 700 g/mol,分子量分布系数为4.27,玻璃化温度为115.09℃,700℃时残炭率为25.51%;Li Ac催化体系所得产物数均分子量为8 000 g/mol,分子量分布系数为9.36,玻璃化温度为109.91℃,700℃时残炭率为24.11%。Phosphorus-containing polycarbonate was synthesized through melt-polycondensation with bisphenol A,diphenyl carbonate,triphenyl phosphite as raw materials and LiOH/LiAc as cata？lysts. The structure,molecular weight and molecular weight distribution,glass transition tempera？ture and thermal stability of the products were characterized with infrared spectroscopy,gel perme？ation chromatography,differential scanning calorimetry and thermal gravimetric analysis,respec？tively. Phosphorus-containing polycarbonates with Mn=8 700 g/mol,PDI=4. 27,tg=115. 09 ℃, 700 ℃ carbon residue of 25. 51% and Mn=8 000 g/mol,PDI=9. 36,tg=109. 91 ℃,700 ℃ carbon residue of 24. 11%were obtained by the reaction catalyzed with LiOH and LiAc,respectively.

关 键 词：双酚A(BPA) 碳酸二苯酯(DPC) 亚磷酸三苯酯 含磷聚碳酸酯 熔融缩聚 

分 类 号：O631.5[理学—高分子化学]