Laboratory of Applied Chemistry, Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany.
Macromol Rapid Commun. 2013 Oct;34(19):1569-74. doi: 10.1002/marc.201300503. Epub 2013 Sep 1.
1,5,7-Triazabicyclo[4.4.0]dec-5-ene (TBD)-catalyzed polycondensation reactions of fatty acid derived dimethyl dicarbamates and diols are introduced as a versatile, non-isocyanate route to renewable polyurethanes. The key step for the synthesis of dimethyl carbamate monomers from plant-oil-derived dicarboxylic acids is based on a sustainable base-catalyzed Lossen rearrangement. The formed polyurethanes with molecular weights up to 25 kDa are characterized by SEC, DSC, and NMR analysis.
1,5,7-三氮杂双环[4.4.0]癸-5-烯（TBD）催化脂肪酸衍生的二甲基二氨基甲酸酯和二醇的缩聚反应被引入作为一种通用的、非异氰酸酯的可再生聚氨酯的途径。从植物油衍生的二羧酸合成二甲基氨基甲酸甲酯单体的关键步骤是基于可持续的碱催化Lossen 重排。形成的分子量高达 25 kDa 的聚氨酯通过 SEC、DSC 和 NMR 分析进行了表征。
