Abstract The investigation on the curing kinetics of phthalonitrile is of significance for understanding the curing mechanism and optimizing the curing process. Here the curing kinetics of 1,3-bis (3,4-dicyanophenoxy) benzene (3BOCN) promoted by tyrosine cyclic peptide (TCP) was studied by non-isothermal differential scanning calorimetry (DSC) with the aid of two-dimensional correlation spectroscopy (2DCS). 2DCS revealed a multi-path curing reaction of 3BOCN/TCP system, so the peak fitting was used to calculate the kinetic parameters of the two curing pathways. The results showed that both curing pathways of 3BOCN/TCP system could be described by autocatalytic model, and the calculated values could fit well with the experimental data.

中文翻译：

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生物酪氨酸环肽促进邻苯二甲腈固化动力学研究

摘要 邻苯二甲腈的硫化动力学研究对于理解硫化机理和优化硫化工艺具有重要意义。在此，通过非等温差示扫描量热法 (DSC) 借助二维相关光谱研究了酪氨酸环肽 (TCP) 促进的 1,3-双 (3,4-二氰基苯氧基) 苯 (3BOCN) 的固化动力学(2DCS)。2DCS 揭示了 3BOCN/TCP 体系的多路径固化反应，因此使用峰值拟合来计算两种固化路径的动力学参数。结果表明，3BOCN/TCP体系的两种固化途径均可用自催化模型描述，计算值与实验数据吻合较好。