The structure and properties of polymer were characterized by means of gel permeation chromatography (GPC),differential scanning calormetry (DSC)and infrared ray(FTIR).

• 采取凝胶色谱(GPC)、热分析(DSC)、红外光谱(FTIR)等测试手段对聚合物基体树脂的形态结构进行了表征,研究了NCO/OH摩尔比对基体树脂性能的影响;