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Synthesis of Resins Using Epoxies and Humins as Building Blocks: A Mechanistic Study Based on In-Situ FT-IR and NMR Spectroscopies

机译:以环氧树脂和腐殖质为基料合成树脂:基于原位FT-IR和NMR光谱的机理研究

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摘要

The combination of eco-respectful epoxy compounds with the humins, a by-product of biomass chemical conversion technologies, allow the obtention of materials with high added value. In this work, we propose a chemical connection study of humins with two aliphatic bis-epoxides through copolymerization reactions to synthesize sustainable, bio-based thermosets. The mechanism insights for the crosslinking between the epoxides and humins was proposed considering the different functionalities of the humins structure. Fourier Transform InfraRed (FT-IR), one dimensional (1D) and two-dimensional (2D) Nuclear Magnetic Resonance (NMR) spectroscopy techniques were used to build the proposed mechanism. By these techniques, the principal chain connections and the reactivity of all the components were highlighted in the synthesized networks.
机译:环保型环氧化合物与腐殖质的结合,腐殖质是生物质化学转化技术的副产品,可实现具有高附加值的材料。在这项工作中,我们提出了通过共聚反应合成可持续的,基于生物的热固性化合物,将腐殖质与两种脂肪族双环氧化物进行化学连接的研究。考虑到腐殖质结构的不同功能,提出了环氧化物与腐殖质之间交联的机理研究。使用傅立叶变换红外(FT-IR),一维(1D)和二维(2D)核磁共振(NMR)光谱技术来构建所提出的机理。通过这些技术,在合成网络中突出了主链连接和所有组分的反应性。

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