A nitrogen-rich cyanuric–urea polymer (CUP) was synthesized in a single step under solvent free conditions. The catalyst was characterized by microanalysis, FT-IR, XRD, ¹³C/¹⁵N CP-MAS NMR, SEM, TEM, EDX spectroscopy, nitrogen sorption–desorption studies and CO₂ TPD. The CUP was used as an efficient catalyst for the cycloaddition reaction of epoxides with CO₂ under solvent and additive free conditions. The product cyclic carbonates were obtained with high conversion and excellent selectivity. This method also provides a straightforward approach with great application to access polyurethane/polyhydroxyurethane in a single step with good yield.

中文翻译：

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富氮聚合物作为环氧化物将CO ₂加成环氧化物的有机催化剂及其在聚氨酯合成中的应用

在无溶剂条件下一步一步合成了富氮的氰尿脲聚合物（CUP）。通过微分析，FT-IR，XRD，¹³ C / ¹⁵ N CP-MAS NMR，SEM，TEM，EDX光谱，氮吸附-解吸研究和CO ₂ TPD对该催化剂进行了表征。在CUP用作与CO环氧化物的环加成反应的有效催化剂₂溶剂和添加剂自由条件下。以高转化率和优异的选择性获得产物环状碳酸酯。该方法还提供了一种简单的方法，具有很大的应用价值，可以一步一步以高收率获得聚氨酯/聚羟基氨基甲酸酯。