The effect of different molecular weight and adding quantity of PEG on the compatibility of PET/PEG blend was investigated by DSC method.

• 用差示扫描量热法(DSC)研究了不同分子量和加入量的PEG 对与PET 共混时共混物相容性的影响。 实验得知,此体系不能用两个T_g 的方法来判断二者的相容性。