Details

Autor(en) / Beteiligte

• Sonnenschein, Mark F

Titel

SPECIAL TOPIC

Ist Teil von

• Polyurethanes, 2021, p.421-439

Ort / Verlag

Hoboken, NJ, USA: John Wiley & Sons, Inc

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Wiley Online Library All Obooks

Beschreibungen/Notizen

• The growth of commercial polyurethane building blocks and products is a testament to their efficacy and their efficiency. From the standpoint of both cost and processing, polyurethanes are attractive alternatives to many thermoplastic and thermoset materials. This chapter covers nonisocyanate chemistries that are actively explored for their potential to functionally substitute in polyurethane applications, regardless of economic barriers. It presents synthetic routes to making urethane structures without ever employing isocyanate‐based building blocks in their construction. The urethane formation reaction occurs via nucleophilic attack of the carbarnate anion on the aziridinium cation. Polyurethane formation is achieved by reaction of polycyclic carbonate with polyamines having primary amine functionality. Industrial and commercial adoption of cyclic carbonate chemistry for making polyurethane backbones will depend on several factors: the ability to make useful materials, the ability to make those materials economically, and environmental, health, and safety advantages relative to isocyanate‐based urethanes.