摘要
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.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2013年第22期82-84,100,共4页
Materials Reports
基金
甘肃省青年科技基金(1208RJYA032)
西北师范大学青年提升骨干计划(NWNU-LKQN-12-4)
甘肃省高等学校科研项目(2013A-009)