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Observation of banded spherulites and lamellar structures by atomic force microscopy |
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| Authors: | Jiang?Yong Luo?Yanhong Fan?Zefu Wang?Xiayu Xu?Jun Guo?Baohua |
| Institution: | 1. State Key Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 2. State Key Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;Institute of Polymer Science and Engineering, Xiangtan University, Xiangtan 411105, China 3. Institute of Polymer Science and Engineering, Xiangtan University, Xiangtan 411105, China 4. Institute of Polymer Science & Engineering, Department of Chemical Engineering, School of Materials Science & Engineering, Tsinghua University, Beijing 100084, China 5. State Key Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | Lamellar structures of banded spherulites of poly(ε-caprolactone)/poly(vinyl chloride) (PCL/PVC) blends are observed using tapping mode atomic force microscopy (AFM). The surface of the PCL/PVC banded spherulites presents to be concentric periodic ups and downs. The period of the bands corresponds to the extinction rings under the polarized optical microscopy observation. The lamellae with edge-on orientation in the ridges and the flat-on lamellae in the valleys of the banded spherulites are observed clearly. The twisting between the edge-on and flat-on lamellae is also observed. |
| Keywords: | atomic force microscopy banded spherulites lamellar twisting poly(?caprolactone) (PCL) poly(vinyl chlo- ride) (PVC) |
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