A series of environmentally friendly non-isocyanate polyurethanes (NIPUs) were successfully prepared via the polyaddition reaction of bio-based polyether polyol-based cyclic carbonate with diamine derivative of dimerized fatty acids. The syntheses of NIPUs were realized by the three-step method in the absence of toxic solvents and, importantly, the process of carbonation did not require the use of elevated pressure. The effect of using various types of bio-based amines, [amine]/[cyclic carbonate] molar ratio as well as different reaction temperatures on the chemical structure and thermal properties were widely investigated by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA), respectively. The Gaussian deconvolution technique was used to decompose the carbonyl region (-CO) of three peaks in various samples. It was found that the molar ratio of substrates and curing temperature have an effect on the distribution of free and H-bonded carbonyl groups as well as carbonyl groups from cyclic carbonates in the chemical structure of the prepared compounds. On this basis, the role of hydrogen bonds in the chemical structure of NIPU on selected sample properties was determined. Moreover, the impact of water during 6 months of immersion on the polymer networks was examined.

通过生物基聚醚多元醇基环状碳酸酯与二聚脂肪酸二胺衍生物的加聚反应，成功制备了一系列环保型非异氰酸酯聚氨酯（NIPU）。NIPU的合成是在不存在有毒溶剂的情况下通过三步法实现的，重要的是，碳酸化过程不需要使用高压。通过傅立叶变换红外光谱（FTIR），差示扫描量热法广泛研究了使用各种类型的生物基胺，[胺] / [环状碳酸酯]摩尔比以及不同的反应温度对化学结构和热性能的影响。 （DSC）和热重分析（TGA）。使用高斯反卷积技术分解羰基区域（-CO）各种样品中的三个峰。发现底物的摩尔比和固化温度对所制备化合物的化学结构中的游离和H键合的羰基以及来自环状碳酸酯的羰基的分布有影响。在此基础上，确定了氢键在NIPU的化学结构中对所选样品特性的作用。此外，检查了浸水六个月期间水对聚合物网络的影响。