Phase Transitions of Polyamide 6/Polyurethane Blends Compatibilized by Copolyurethaneamides

Blends obtained from polyamide 6 and a thermoplastic polyurethane compatibilized by diblock copolyurethaneamides were investigated by means of DMTA and DSC. The blends were prepared by compounding in a Brabender mixer. The compatibilizer affected the glass transition temperature of the amorphous phase of the blends. The non-isothermal crystallization temperature of the polyamide phase was lowered in the presence of the polyurethane and the copolyurethaneamide. This revised version was published online in August 2006 with corrections to the Cover Date.