Oxyethylene-containing copolyesters were synthesized from bisphenol-A
(BPA) and diacyl chlorides containing oxyethylene linkages, isophthalo
yl chloride (IPC), and terephthaloyl chloride (TPC) by interfacial pol
ycondensation. All the copolyesters were obtained in almost quantitati
ve yields and showed film forming properties. The copolyesters were am
orphous/semicrystalline and were soluble in common organic solvents. C
opolyesters showed similar pattern of decomposition with no weight los
s below 380 degrees C in nitrogen.