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New biobased polyurethanes were synthesized from cyclocarbonated broccoli seed oil and different di‐ or triamines. The isocyanate‐free route to synthesize these polyurethanes was divided into three steps: the broccoli seed oil was first epoxydized, then carbonated with CO2 at a pressure of 50 bar to convert oxiranes into cyclic carbonates, and finally polyurethanes were prepared through the reaction...
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