Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.
BASF Coatings GmbH, 48165, Münster, Germany.
ChemSusChem. 2022 Sep 7;15(17):e202201123. doi: 10.1002/cssc.202201123. Epub 2022 Jul 25.
Conversion of β-elemene into new β-elemene dicarbonates through epoxidation and halide salt-catalyzed CO cycloaddition reactions is reported. Step-growth polyaddition of this dicarbonate to five different, commercial diamines was investigated under neat conditions at 150 °C yielding non-isocyanate-based low molecular weight oligo(hydroxyurethane)s with 1.3≤M ≤6.3 kDa and 1.3≤Ð≤2.1, and with glass transition temperatures ranging from -59 to 84 °C. The preparation of one selected polyhydroxyurethane material, obtained in the presence of Jeffamine® D-2010 was scaled-up to 43 g. The latter, when combined in a formulation using Irgacure® 2100 and Laromer® LR 9000 allowed the preparation of coatings that were analyzed with several techniques showing the potential of these biobased oligourethanes towards the preparation of commercially relevant materials.
通过环氧化和卤化物盐催化的 CO 加成反应，将 β-榄香烯转化为新的 β-榄香烯二碳酸酯。在 150°C 下，在无溶剂条件下，研究了这种二碳酸酯与五种不同的商业二胺的逐步加聚反应，得到了非异氰酸酯基低分子量低聚物羟（氧）酯，其重均分子量Mw 在 1.3≤M≤6.3kDa 之间，多分散性指数 Mw/Mn 在 1.3≤Ð≤2.1 之间，玻璃化转变温度范围从-59°C 到 84°C。在 Jeffamine® D-2010 的存在下，制备了一种选定的聚羟（氧）酯材料，并将其放大到 43g。当与 Irgacure® 2100 和 Laromer® LR 9000 组合在一个配方中时，可以制备出多种技术分析的涂层，表明这些生物基低聚物在制备具有商业相关性的材料方面具有潜力。
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