Carbamates as Monomers for Polyurethanes

IC²R develops methodologies for the synthesis of phosgene-free carbamates and, thus, isocyanates.

Either the reaction of amines with CO₂ and alkylating agents

or the reaction of amines with organic carbonates have been used.

Carbamates of primary amines are then transformed into isocyanates

Bio-sourced substrates are used so to produce bio-isocyanates.

Non-Isocyanate (Poly)-Urethanes