The physical properties and phase structure of blends of the multiblock poly (ether-ester) elastomer (PEE) and the multiblock poly((ether-carbonate)-urethane) elastomer (PUC) have been investigated using the methods of differential scanning calorimetry and dynamic mechanical analysis. The blends were prepared in the melt. The system is characterized by one glass transition temperature (Tg) for the soft phase, which points to the occurrence of partial miscibility. The blends appear to possess two hard phases, a polyester phase and a polyurethane phase, with glass transition temperatures and melting points close to the temperatures of the initial copolymers. Suggestions have been made regarding the possibility of occurrence of an intermediate phase conspicuous by extra glass transition and crystallization temperatures
Посилання на статтю:
Dynamic mechanical and microcalorimetric studies on the phase structure in blends of two multiblock copolymers: 1. Poly (ether-ester) and poly ( (ether-carbonate)-urethane ) blends / Zbigniew Rostaniec // Polymer. – 1993. – Vol 34. – P. 1249-1255.