二氧化碳、环氧丙烷和γ-缩水甘油醚氧丙基三甲氧基硅烷三元共聚物的合成及性能研究

Study on Synthesis and Properties of Terpolymers Derived from Carbon Dioxide,Propylene Oxide and γ-Glycidyloxypropyltrimethoxysilane

利用戊二酸锌(ZnGA)催化制备了二氧化碳(CO2)、环氧丙烷(PO)和γ-缩水甘油醚氧丙基三甲氧基硅烷(KH-560)三元共聚物(PPCKH),用红外光谱、核磁共振氢谱(1 H NMR)和凝胶渗透色谱(GPC)表征了PPCKH的结构。结果表明,三元共聚物PPCKH为交替结构,聚醚(PE)含量很少,但共聚合反应中KH-560活性较低。利用溶胶-凝胶技术制备PPCKH/SiO2复合材料,热重(TG)分析表明PPCKH/SiO2复合材料呈现高的热稳定性能。

Terpolymerization of carbon dioxide （CO2）, propylene oxide （PO） and 7-glycidyloxypropyhrime thoxysilane （KH-560） was successfully carried out using zinc glutarate （ZnGA） as catalyst, consequently giving a new type of polycarbonate （PPCKH）. The resulting terpolymers were fully characterized by FT-IR, 1H NMR and GPC techniques. The results showed that PPCKH was an alternating structure with little polyether （PE）, and the copoly- merization reaction activity of KH-560 was relatively low. PPCKH/SiO2 composites were prepared by sol-gel process. Thermogravimetry analysis （TG） indicated that PPCKH/SiO2 composites presented a high thermal stability.