THE COACERVATE STRUCTURE AND MECHANISM OF CRYSTALLIZATION FOR PET/PEET BLENDS
聚酯／聚醚酯高分子混合系的凝集状态和结晶化机理

he mechanism of annealing crystallization for crystalline polymers PET (polyethylene terephthalate) and PEET (Polyethylene-1, 2-diphenoxyethane-p, p'-dicarboxylate) blends was stlldied. The observation and study by DSC, X-ray and polarization microscope show that chemical reaction of ester interchange-copolymerization did not occur in the melt "dxing for PET and PEET. Every component crystallizes independently. Their crystallinity, crystallization rate and spherulitic texture are influenced by two factors, that is, crystallization temperature and blend composition. The data of hindered crystallization factors that express the influence of crystallization temperature and blend composition was proposed.