Green alternative cosolvents to <i>N</i>-methyl-2-pyrrolidone in water polyurethane dispersions
Lorena Germán, José María Cuevas, Rubén Cobos, Leyre Pérez‐Álvarez, José Luis Vilas‐Vilela
Abstract
-Methyl-2-pyrrolidone is a toxic dipolar aprotic solvent widely used in the synthesis of polyurethane dispersions (PUD). Since legislation strongly restricts this substance, green alternatives are essential. Dihydrolevoglucosenone and gamma valerolactone demonstrate comparable performance to that of NMP as cosolvent in the synthesis and the film forming process of PUD.
Topics & Concepts
Polyurethane2-PyrrolidoneChemistryChemical engineeringOrganic chemistryPolymer chemistryEngineeringChemistry and Chemical EngineeringCatalysis for Biomass ConversionChemical Synthesis and Reactions