The crystallization morphology and isothermal crystallization process were studied by means of polarized microscope and DLI (Depolarized Light Intensity) for poly (ether ester) block copolymers.
采用偏光显微镜和光学解偏结晶速率仪研究了嵌段聚醚酯共聚物的结晶形态和等温结晶过程。
2
Purification of diphenyl ether by crystallization without solvent is discussed. This method has provided with the characteristics of high efficiency, economy and cleanness.