Ry. Zhang et al., MISCIBILITY OF POLYHYDROXY ETHER OF BISPHENOL-A WITH ETHYLENE TEREPHTHALATE-CAPROLACTONE COPOLYESTERS, European Polymer Journal, 31(10), 1995, pp. 1011-1014
Blends of the polyhydroxyether of bisphenol-A (Phenoxy) and a series o
f ethylene terephthalate (ET)-caprolactone (CL) random copolyesters (T
CL) having different ET contents were examined mainly by differential
scanning calorimeter (DSC). A miscibility limit specified by the ET co
ntent was obtained and estimated to be about 90 wt%. When the ET conte
nt is less than this limit, the Phenoxy and copolyesters are miscible
with each other. A relatively stronger specific intermolecular interac
tion between Phenoxy and copolyester was detected by Fourier Transform
infra-red (FTIR) spectroscopy, and it may be an important factor whic
h affects the miscibility in these blends. Based on the miscibility be
haviour of Phenoxy/TCL copolyester blends, the factors which affect th
e miscibility of Phenoxy with polyester was discussed.