Abstract
Polyurethane films were prepared from the reaction of cardanol–lignins (CL) with a different cardanol/lignin ratio and toluene diisocyanate. The crosslink density, the glass transition temperature and the mechanical properties of the obtained films were also determined. The increase of cardanol content used in CL improves the flexibility as well as the tensile strength and the glass transition temperature of the polyurethane film.
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