Shape Memory Properties in Poly(ethylene oxide)–Poly(ethylene terephthalate) Copolymers
Shape Memory Properties in Poly(ethylene oxide)–Poly(ethylene terephthalate) Copolymers
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DOI：
10.1002/(sici)1099-1581(199703)8:3
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发表时间：
1997-03
影响因子：
3.4
通讯作者：
Mingtai Wang;Xiaolie Luo;Xiaoyun Zhang;D. Ma
中科院分区：
文献类型：
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作者：
Mingtai Wang;Xiaolie Luo;Xiaoyun Zhang;D. Ma
用照片说明了聚（环氧乙烷）（PEO）和聚（对苯二甲酸乙二醇酯）（PET）的几种共聚物的记忆效应，确定与收缩实验和其特征在于样品的恢复到其原始图形。适当组成的共聚物可以进行近似完全的恢复，这与样品在一定程度上发生收缩的退火温度密切相关。PEO链段的熔融和重结晶可能是记忆效应的原因。在多次疲劳循环（如15-20次）后，样品的记忆性能几乎保持不变，这使得这些共聚物可作为新型形状记忆材料在实际应用中得到应用。© 1997 John Wiley & Sons，Ltd.
Memory effects of several copolymers of poly(ethylene oxide) (PEO) and poly(ethylene terephthalate) (PET) were illustrated with photos, determined with shrinkage experiments and characterized by the recovery of samples to their original figures. Copolymers of appropriate composition could undertake an approximately full recovery which is tightly related to the annealing temperature at which shrinkage of samples occurs to some extent. Melting and recrystallization of PEO segments may be responsible for the memory effect. The memory properties of samples almost kept unchanged after many fatigue cycles (e.g. 15–20 cycles), which could make these copolymers useful in practical applications as novel shape memory materials. © 1997 John Wiley & Sons, Ltd.