富勒醇聚醚聚氨酯的热性能

Thermal Performance of Fullerenol Derived Urethane-Connected Polyether Star-like Polymers

通过水溶性多羟基化合物 C60 ( OH) n和聚醚聚氨酯 ( PEO- PU)预聚体反应合成了一系列新型的 C60 星形聚醚聚氨酯 ,并用傅里叶红外分析 ( FTIR)、差式扫描量热分析 ( DSC)、热重分析( TGA)等手段对其性能进行了表征 .结果表明 ,C60 星形聚醚聚氨酯比线性的聚醚聚氨酯具有更高的柔顺性和热稳定性 ;随着聚氧化乙烯数均分子量 Mn的增加 ,C60 星形聚醚聚氨酯的玻璃化转变温度 ( Tg)降低 ,热分解温度 ( td)

A series of fullerenol (C 60 (OH) n ) derived urethane connected polyether star like polymers were prepared by the reaction of fullerenol (C 60 (OH) n ) with prepoly(ether urethane) (PEO PU). The thermal properties of fullerenol derived urethane connected polyether polymers were characterized by FTIR, DSC, TGA. The experimental results show that the star like polymers are more stable than the linear poly (ethane urethane), at the same time, with the increase of the molecular weight of the polyethene oxide, the T g of the polymers decreases and t d increases gradually.