Crystallization behavior of a thermoplastic polyimide derived from 3,3′,4,4′-oxydiphthalic dianhydride and 4,4′-oxydianiline
Crystallization behavior of a thermoplastic polyimide derived from 3,3′,4,4′-oxydiphthalic dianhydride and 4,4′-oxydianiline
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DOI：
10.1002/app.27852
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发表时间：
2008-05
影响因子：
3
通讯作者：
Guiyan Zhao;Min Zhang;Yongfeng Men;M. Ding;Wei Jiang
中科院分区：
文献类型：
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作者：
Guiyan Zhao;Min Zhang;Yongfeng Men;M. Ding;Wei Jiang
通过差示扫描量热法 (DSC) 和广角 X 射线衍射研究了由 3,3',4,4'-氧二邻苯二甲酸二酐和 4,4'-氧二苯胺衍生的芳香族热塑性聚酰亚胺的非等温和等温结晶动力学。非等温结晶研究结果表明，在第一次加热过程中出现了弱熔融峰，而在随后的冷却过程中DSC曲线中没有出现结晶峰。另一方面，对260-330℃温度范围内等温结晶的研究表明，300℃结晶100min的样品在较低温度下出现了新的放热峰。
Nonisothermal and isothermal crystallization kinetics of an aromatic thermoplastic polyimide derived from 3,3',4,4'-oxydiphthalic dianhydride and 4,4'-oxydianiline have been investigated by means of differential scanning calorimetry (DSC) and wide-angle X-ray diffraction. The results for nonisothermal crystallization study showed that a weak melting peak appeared during the first heating process, whereas no crystallization peak appeared in the DSC curve during the subsequent cooling process. On the other hand, the study for the isothermal crystallization in the temperature range of 260-330 degrees C showed that a new exothermic peak appeared at lower temperature for the samples crystallized for 100 min at 300 degrees C.