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AMINE-TERMINATED OLIGOIMIDES FOR EPOXY CURING

机译:胺封端的寡聚环氧化合物

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Oligoimides of N,N,-4,4'-bismaleimidodiphenyl ether (DDEBM) and 4,4'-diaminodiphenylmethane (DDM) were prepared by the Michael addition reaction. The synthesized oligoimides (DDEBM-DDM) were characterized for their molecular structure by elemental analysis and IR spectroscopy. The number-average molecular weight (<(M)over bar (n)>) was determined by nonaqueous conductometric titration. Thermal characteristics were studied by thermogravimetry. Use of DDEBM-DDM oligomers as a curing agent for epoxy resin was studied by differential scanning calorimetry (DSC). The resin curing of the epoxy was monitored by the change in oxirane spectral band in the IR spectrum. Glass fiber reinforced composites of DDEBM-DDM-epoxy were prepared and evaluated for their physical and chemical properties. (C) 1996 John Wiley & Sons, Inc. [References: 25]
机译:通过Michael加成反应制备了N,N,-4,4′-双马来酰亚胺二苯醚(DDEBM)和4,4′-二氨基二苯甲烷(DDM)的低聚酰亚胺。通过元素分析和红外光谱对合成的寡酰亚胺(DDEBM-DDM)的分子结构进行了表征。通过非水电导滴定法测定数均分子量([(M)/ bar(n))。通过热重法研究热特性。通过差示扫描量热法(DSC)研究了DDEBM-DDM低聚物作为环氧树脂的固化剂。通过IR光谱中环氧乙烷光谱带的变化来监测环氧树脂的树脂固化。制备了DDEBM-DDM-环氧树脂的玻璃纤维增​​强复合材料,并对其物理和化学性能进行了评估。 (C)1996 John Wiley&Sons,Inc. [参考:25]

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