Poly(butylene terephthalate)/poly([epsilon]-caprolactone) blends: miscibility and thermal and mechanical properties.(Author abstract) From: Polymer Engineering and Science | Date: March 1, 2007| Author: Di Lorenzo, Maria Laura; La Pietra, Paola; Errico, Maria Emanuela; Righetti, Maria Cristina; Angiuli, Marco | COPYRIGHT 2007 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Miscibility and thermal and mechanical properties of poly(butylene terephthalate) (PBT) blends with poly([epsilon]-caprolactone) (PCL) were analyzed as a function of the molecular mass of PCL. It was found that the components are miscible when oligomeric PCL is blended with PBT, probably due to favorable interactions between -OH end groups of poly([epsilon]-caprolactone) and ester groups of PBT. In the blends containing high molar mass PCL, the concentration of hydroxyl end groups is lower,...