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- W4242350608 abstract "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." @default.
- W4242350608 created "2022-05-12" @default.
- W4242350608 date "2020-12-11" @default.
- W4242350608 modified "2023-10-17" @default.
- W4242350608 title "SPECIAL TOPIC" @default.
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- W4242350608 doi "https://doi.org/10.1002/9781119669401.ch12" @default.
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