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.