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首页> 外文期刊>Journal of Applied Polymer Science >COMPARISON OF ONE-POT AND TWO-STEP POLYMERIZATION OF POLYIMIDE FROM BPDA/ODA
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COMPARISON OF ONE-POT AND TWO-STEP POLYMERIZATION OF POLYIMIDE FROM BPDA/ODA

机译：BPDA / ODA中的聚酰亚胺一锅法和两步法聚合反应的比较

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摘要

The one-pot method polymerization of polyimide was carried out from 3,3',4,4'-biphenyl tetracarboxylic dianhydride (BPDA) and 4,4'-oxydianiline (ODA) by the use of p-chlorophenol as the solvent. The behavior of the polymerization was compared with that of the two-step method. The imidization reaction in the one-pot method proceeds completely in this system at even a low temperature such as 100 degrees C. In the course of the film preparation from the solution, the embrittlement occurs when the film is prepared from polyamic acid solution, while it does not occur in the case of that from the solution of the one-pot method. A molecular weight of polyimide film is almost the same as that of precursor polyimide in the solution. In the same way, that of polyimide film is almost the same as that of precursor polyamic acid. The mechanical properties of the polyimide film prepared by the one-pot method are similar to those by the two-step method. (C) 1996 John Wiley & Sons, Inc. [References: 18]
机译：通过对氯苯酚作为溶剂，由3,3'，4,4'-联苯四羧酸二酐（BPDA）和4,4'-氧二苯胺（ODA）一锅法聚合聚酰亚胺。将聚合的行为与两步法的行为进行了比较。一锅法中的酰亚胺化反应即使在低温（例如100摄氏度）下也能在该系统中完全进行。在从溶液制备膜的过程中，当从聚酰胺酸溶液制备膜时会发生脆化，而在单锅法解决方案中不会发生这种情况。聚酰亚胺膜的分子量与溶液中的前体聚酰亚胺的分子量几乎相同。同样地，聚酰亚胺膜的膜几乎与前体聚酰胺酸的膜相同。通过一锅法制备的聚酰亚胺膜的机械性能与通过两步法制备的聚酰亚胺膜的机械性能相似。 （C）1996 John Wiley＆Sons，Inc. [参考：18]

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