Bio-Based Polyurethane Containing Isosorbide for Use in Composites and Coatings

Isosorbide is a renewable material derived from sorbitol, which is obtained from glucose. Isosorbide (Dianhydro-D-glucitol) is a nontoxic diol produced from bio-based feedstocks that is biodegradable and thermally stable. The purpose of this research is to formulate polyurethane for use in composites or coatings that contain isosorbide as part or all of the polyol phase and can be easily molded or cast into a film at ambient conditions. This research also explores the possibility of using isosorbide as a drop-in replacement for a commercial polyol in a polyurethane formulation. The raw materials used in this study are detailed in the accompanying table.