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不同软链段长度和不同硬链段含量的环氧乙烷－对苯二甲酸乙二酯被合成．分别测试了它们的拉伸样条的热致形变恢复．Ｓ形热致形变恢复曲线用最大形变恢复率（Ｒｆ），形变恢复温度（Ｔｒ）和形变恢复速度（Ｖｒ）表征．这些量的数值结果表明软链段的结晶状况决定热致形变恢复温度，最大形变恢复和形变恢复速度既依赖于硬链段所形成的物理交联点的稳定性，也受软链段长度变化的影响．后一影响是形变恢复的熵本质决定的
Ethylene oxide-ethylene terephthalate with different soft segment lengths and different hard segment contents was synthesized. The thermotropic deformation recovery of their tensile splines was tested separately. S-shaped thermomechanical deformation curves were characterized by maximum deformation recovery (Rf), deformation recovery temperature (Tr) and deformation recovery rate (Vr). The numerical results of these quantities show that the crystalline state of the soft segment determines the thermal deformation recovery temperature, the maximum deformation recovery and the speed of the deformation recovery depend not only on the stability of the physical crosslinking points formed by the hard segments but also on the lengths of the soft segments Impact. The latter effect is determined by the nature of the entropy of deformation recovery