Department of Chemistry, Iowa State University, Ames, IA 50011, USA.
ChemSusChem. 2013 Jul;6(7):1182-5. doi: 10.1002/cssc.201300126. Epub 2013 Jun 11.
Benign building blocks: Stereochemically pure diisocyanates were prepared on a multigram scale from succinic anhydride and isosorbide or isomannide. Characterization of polyurethanes that were produced from these diisocyanates revealed low polydispersity, high thermal stability, and stereochemistry-dependent morphology. If biobased succinic anhydride is used, then no stoichiometric petroleum-derived reagents are required in the synthesis of these materials.
琥珀酸酐和异山梨醇或异甘露醇可按多克规模立体纯制备二异氰酸酯。由这些二异氰酸酯制备的聚氨酯的特性研究表明，其具有低分散性、高热稳定性和立体化学依赖性形态。如果使用生物基琥珀酸酐，那么在这些材料的合成中就不需要使用化学计量的石油衍生试剂。
