The thermotropic properties, the melting point (T(subscript m)) and the isotropization temperature (T(subscript i)) of the synthesized polyurethanes were characterized by DSC,IR and POM.

• 并用差热扫描量热分析仪(DSC)、红外光谱(IR)、偏光显微镜(POM)对液晶聚氨酯进行了表征。