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Kinetic of epoxy resin formation by high-performance liquid chromatography

机译:高效液相色谱法形成环氧树脂的动力学

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This article is focused on the following of the cure of an epoxy resin by high-performance liquid chromatography (HPLC) and the comparison of the data obtained with those obtained by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) techniques usually employed for characterize curing processes. A reversed-phase HPLC method with UV detection is developed to study the kinetic of the curing reaction of diglycidyl ether of bisphenol A (DGEBA) with 1,3-cyclohexanebismethylamine (1,3-BAC) at 60, 70, and 80degreesC, before and after gelation. The limits of quantification obtained permit the application of the proposed method until the last steps of the formation kinetic. HPLC and DSC analysis show a good correlation. The gel conversions obtained by HPLC and DMA agree well. (C) 2003 Wiley Periodicals, Inc. [References: 18]
机译:本文着重介绍通过高效液相色谱(HPLC)固化环氧树脂的过程,并将所获得的数据与通过差示扫描量热法(DSC)和动态力学分析(DMA)技术获得的数据进行比较用于表征固化过程。为了研究双酚A的二缩水甘油醚(DGEBA)与1,3-环己烷二甲胺(1,3-BAC)在60、70和80摄氏度下固化反应的动力学,开发了一种具有UV检测的反相HPLC方法。和胶凝之后。所获得的定量极限允许所提出的方法的应用直到形成动力学的最后步骤。 HPLC和DSC分析显示出良好的相关性。通过HPLC和DMA获得的凝胶转化率非常一致。 (C)2003 Wiley Periodicals,Inc. [参考:18]

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