Formation of linear and crosslinked polyurethane nanoparticles that self-assemble differently in acetone and in water

For the first time, stable water-borne polyurethane dispersions (PUDs) leading to mechanically strong polyurethane (PU) coatings were prepared without any chain extender. Elimination of this step and using of water-crosslinking gives promising applications of PUDs as biomaterials and production on an industrial scale. The PU system consists of polycarbonate macrodiol (PCD), (2,2-bis(hydroxymethyl)) propionic acid (DMPA), 1,6-diisocyanatohexane...