Journal article

Publication year: 2016

Pages: 2269-2272

Journal: Chemistry-Sustainability-Energy-Materials

Volume number: 9

Issue number: 16

DOI Link: https://doi.org/10.1002/cssc.201600778

Publisher: Wiley

Abstract: 

The aminolysis of (poly)carbonates by (poly)amines provides access to
non‐isocyanate polyurethanes (NIPUs) that are toxic‐reagent‐free
analogues of polyurethanes (PUs). Owing to their low reactivity, the
ring opening of cyclic carbonates requires the use of a catalyst.
Herein, we report that the more available and cheaper ureas could
advantageously be used for catalyzing the formation of NIPUs at the
expense of the thiourea analogues. In addition, we demonstrate a
medium‐range pK_a of the (thio)urea and an unqeual substitution pattern is critical for controlling the efficiency of the carbonate opening.

Harvard Citation style: Blain, M., Yau, H., Jean-Gerard, L., Auvergne, R., Benazet, D., Schreiner, P., et al. (2016) Urea‐ and Thiourea‐Catalyzed Aminolysis of Carbonates, Chemistry-Sustainability-Energy-Materials, 9(16), pp. 2269-2272. https://doi.org/10.1002/cssc.201600778

APA Citation style: Blain, M., Yau, H., Jean-Gerard, L., Auvergne, R., Benazet, D., Schreiner, P., Caillol, S., & Andrioletti, B. (2016). Urea‐ and Thiourea‐Catalyzed Aminolysis of Carbonates. Chemistry-Sustainability-Energy-Materials. 9(16), 2269-2272. https://doi.org/10.1002/cssc.201600778