讨论了高聚物复杂流体的内部结构张量、热力学状态空间、自由能函数和非平衡热力学唯象定律，综述了唯 象定律在处于流场力作用下的高聚物熔体的大分子构象结构、两相共混物的相结构、纤维填充高聚物复合体系的 纤维取向结构的流变方程的应用，指出了一条建立流场中高聚物复杂结构流变方程的途径。

The traditional retraction of the deformed drop method (DDRM) to determine the interfa-cial tension is reformulated to relax the limit the small deformation assumption. The kernel of the new formalism is the calculation of the velocity gradient on the vertex of the ellipsoidal drop. Two models were used for such calculations: the Jackson and Tucker model [J Rheol 47:659 682] and the Yu and Bous-mina model [J Rheol 47:1011 1039]. The method can be used either in the retraction of shear deformed drop, or in the retraction of elongated drops produced by the breakup of a long thread. Comparison with experimental results of the literature showed that conversely to the clas-sical DDRM, good accuracy is ob-tained when the new modeling for the determination of interfacial ten-sion is used both under small and large deformations.