Details

Autor(en) / Beteiligte

• Magliozzi, Fiona
• Scali, Arthur
• Chollet, Guillaume
• Grau, Etienne
• Cramail, Henri

Titel

Enantioselective Crystallization of Diglycerol Dicarbonate: Impact of the Microstructure on Polyhydroxyurethane Properties

Ist Teil von

• Macromolecular rapid communications., 2021-02, Vol.42 (3), p.e2000533-n/a

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Bicylic carbonates are precursors employed in non‐isocyanate polyurethane syntheses, namely polyhydroxyurethanes (PHUs) and, among them, ether‐activated biobased diglycerol dicarbonate (DGDC) is widely investigated. Herein, the original separation of DGDC stereoisomers, thanks to a recrystallization procedure, leading to enantiomers having different crystal lattices, that is, square transparent crystals and needle‐like structures, respectively, is reported. In this study, the separation and the characterization of the two crystal structures is first discussed and, second, the impact of the stereochemistry of DGDC on the corresponding PHUs properties is investigated. The enantioselective crystallization of diglycerol dicarbonate (DGDC) is performed in specific conditions, yielding two types of crystals, respectively, square transparent and needle‐like crystals, which can be easily separated. From these DGDC crystals, a series of poly(hydroxyurethane)s, suppress the second polyhydroxyurethanes, are prepared that exhibit different features and properties with respect to the DGDC microstructure.