Abstract Polycarbonate can be functionalized with specific moieties such as amino groups. A novel approach for functionalization is based on a process integrated surface modification, e.g. during the injection molding process. However, the solid-state reaction routes are complex, not well investigated and difficult to control. In this study the solid state reaction of polycarbonate with octadecylamine was studied by using infrared spectroscopy and 2D correlation analysis. The infrared spectrum taken after 20 min reaction time shows the formation of urethane as an interfacial linker between polycarbonate and octadecylamine. Furthermore, bisphenol-A, also formed initially, indicates a degradation of polycarbonate. The solid-state reaction during 360 min processing time was investigated by 2D correlation analysis. The 2D correlation maps indicate a progress in the degradation of polycarbonate and the formation of biuret and urea. No more urethane is formed during longer processing time. This study demonstrates that a surface modification of polycarbonate with octadecylamine requires a very short reaction time in order to ensure an optimized interfacial link and to minimize the degradation of the materials.

中文翻译：

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聚碳酸酯和伯胺之间固态反应的时间分辨表征

摘要 聚碳酸酯可以用特定的部分（例如氨基）进行功能化。一种新的功能化方法基于过程集成表面改性，例如在注塑过程中。然而，固态反应路线复杂，研究不充分且难以控制。在这项研究中，通过使用红外光谱和二维相关分析研究了聚碳酸酯与十八胺的固态反应。20 分钟反应时间后获得的红外光谱表明，形成了聚氨酯作为聚碳酸酯和十八胺之间的界面连接剂。此外，最初形成的双酚 A 表明聚碳酸酯降解。通过二维相关分析研究了 360 分钟处理时间内的固态反应。二维相关图表明聚碳酸酯降解和缩二脲和尿素形成的进展。在较长的加工时间内不再形成氨基甲酸乙酯。该研究表明，用十八胺对聚碳酸酯进行表面改性需要非常短的反应时间，以确保优化的界面连接并最大限度地减少材料的降解。