Polyurethane prepolymer,polyurethane prepolymer added TDI tripolymer were analyzed with GPC,and the synthesis process of TDI tripolymer was traced with GPC.

• 应用凝胶渗透色谱对聚氨酯预聚体及添加甲苯二异氰酸酯(TDI)三聚体的聚氨酯预聚体产品进行了测试;对甲苯二异氰酸酯三聚体的合成过程进行了跟踪分析。