ATOMIC FORCE MICROSCOPY STUDIES OF POLYCAPROLACTONE RINGED SPHERULITES  

作　　者：Jian-bin Zhang De-zhu Ma Hua Zhong Xiao-lie Luo Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China 

出　　处：《Chinese Journal of Polymer Science》2000年第6期569-572,共4页高分子科学（英文版）

基　　金：This work was supported by The National Natural Science Foundation of China and also The State Science and Technology Commission of China under The National Key Project for Fundamental Research "Macromolecular Condensed State".

摘　　要：The surface morphology of free-surface PCL ringed spherulites was investigated by using atomic force microscopy. The spherulites were obtained by crystallization of PCL/PVC blends of different compositions. It was found that the ringed spherulite exhibited regularly fluctuating rings on its surface. Compared with the bright-dark ring pattern of the spherulite under a polarizing microscope, it was proved that the optical characteristics of the ringed spherulite under polarizing microscope coincided with its surface characteristics. The bright rings in polarizing micrographs of the spherulite coincided with the convex rings on its surface, while the dark rings coincided with the concave rings.The surface morphology of free-surface PCL ringed spherulites was investigated by using atomic force microscopy. The spherulites were obtained by crystallization of PCL/PVC blends of different compositions. It was found that the ringed spherulite exhibited regularly fluctuating rings on its surface. Compared with the bright-dark ring pattern of the spherulite under a polarizing microscope, it was proved that the optical characteristics of the ringed spherulite under polarizing microscope coincided with its surface characteristics. The bright rings in polarizing micrographs of the spherulite coincided with the convex rings on its surface, while the dark rings coincided with the concave rings.

关 键 词：AFM surface morphology ringed spherulites PCL/PVC blends 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]