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从分子量、溶液浓度、测定状态、粘度、模量等多方面证明了聚合物溶胀DSC曲线尾部的小峰反映了大分子缠结,从而提出了一种新的测定固态聚合物中大分子缠结的方法—溶胀差示扫描量热法。这种方法能快速、方便地测量纤维和聚合物材料中的大分子缠结,且不受结晶、非晶和取向结构的影响。
It is proved that the small peak at the tail of the DSC curve of the polymer swells from the aspects of molecular weight, solution concentration, measurement state, viscosity, modulus, etc. to the large molecular entanglement, thus a new method for determining the entanglement of macromolecules in solid polymer Method - Swelling differential scanning calorimetry. This method enables fast and easy measurement of macromolecule entanglement in fibers and polymer materials, independent of crystallinity, amorphous and orientated structures.