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首页> 外文期刊>Journal of Applied Polymer Science >SYNTHESIS AND PROPERTIES OF NOVEL NAPHTHALENE-CONTAINING BISMALEIMIDES
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SYNTHESIS AND PROPERTIES OF NOVEL NAPHTHALENE-CONTAINING BISMALEIMIDES

机译：新型萘二甲酰亚胺的合成及性能

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摘要

New aromatic bismaleimides containing bis(phenoxy)naphthalene unit, were synthesized. They were prepared by reacting a diamine-containing naphthalene and maleic anhydride by the usual two-step procedure that included ring-opening addition to give bismaleamic acid, followed by cyclodehydration to bismaleimide. The monomers were characterized by infrared (IR), proton nuclear magnetic resonance (H-NMR), elemental analyses (EA), and mass spectra (MS). Their thermal polymerization was investigated by differential scanning calorimetry (DSC). The presence of a naphthalene group in the backbone of the bismaleimide had increased the curing temperature and reduced the reactivity of the maleimide bond. The glass transition temperatures of the polymers were in the range of 291-334 degrees C. Thermogravimetric analyses of the cured resins showed higher thermal stability and char yield for naphthalene-containing bismaleimides than for the corresponding benzene analog. The observed char yield of the bismaleimide resins are in accordance with the calculated C/H ratios. (C) 1996 John Wiley & Sons, Inc. [References: 14]
机译：合成了含有双（苯氧基）萘单元的新型芳族双马来酰亚胺。它们通过使含二胺的萘和马来酸酐通过通常的两步方法反应而制备，该方法包括开环加成以生成双马来酰胺酸，然后环脱水为双马来酰亚胺。通过红外（IR），质子核磁共振（H-NMR），元素分析（EA）和质谱（MS）表征单体。通过差示扫描量热法（DSC）研究了它们的热聚合。双马来酰亚胺的主链中萘基的存在提高了固化温度并降低了马来酰亚胺键的反应性。聚合物的玻璃化转变温度在291-334摄氏度的范围内。固化树脂的热重分析显示，与相应的苯类似物相比，含萘的双马来酰亚胺的热稳定性和炭产率更高。双马来酰亚胺树脂的观察到的炭收率与计算的C / H比一致。 （C）1996 John Wiley＆Sons，Inc. [参考：14]

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