首页> 外文期刊>Journal of Applied Polymer Science >PREPARATION AND CHARACTERIZATION OF BISMALEIMIDES CHAIN-EXTENDED BY UREYLENE LINKAGES
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PREPARATION AND CHARACTERIZATION OF BISMALEIMIDES CHAIN-EXTENDED BY UREYLENE LINKAGES

机译:脲键扩链的二苯丙酰亚胺的制备与表征

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The bismaleimides chain-extended by ureylene linkages were obtained by the reaction of a diamine with maleic anhydride (1 : 1 molar ratio) first and then by the reaction of the resulting solution with a diisocyanate, followed by the cyclodehydration of the diamic acid. The bismaleimides were characterized by elemental analysis, IR, H-1-NMR, and C-13-NMR. The results of thermal analysis show that the solidification reaction takes place above 200 degrees C for most bismaleimides and the crosslinking products decompose at higher temperatures. (C) 1996 John Wiley & Sons, Inc. [References: 12]
机译:首先通过二胺与马来酸酐(摩尔比为1:1)反应,然后通过将所得溶液与二异氰酸酯反应,然后将二酰胺酸环化脱水,获得通过亚脲基键扩链的双马来酰亚胺。双马来酰亚胺通过元素分析,IR,H-1-NMR和C-13-NMR进行表征。热分析的结果表明,对于大多数双马来酰亚胺,固化反应发生在200摄氏度以上,并且交联产物在较高的温度下分解。 (C)1996 John Wiley&Sons,Inc. [参考:12]

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