<italic style="font-style: italic">IN SITU</italic> OBSERVATION OF MELTING AND CRYSTALLIZATION BEHAVIORS OF POLY(<italic style="font-style: italic">ε</italic>-CAPROLACTONE) ULTRA-THIN FILMS BY AFM TECHNIQUE

Cong-de Qiao; Shi-chun Jiang; Xiang-ling Ji; Li-jia An

doi:10.1007/s10118-013-1333-5

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IN SITU OBSERVATION OF MELTING AND CRYSTALLIZATION BEHAVIORS OF POLY(ε-CAPROLACTONE) ULTRA-THIN FILMS BY AFM TECHNIQUE

Special Issue: In Memory of Prof. Bingzheng Jiang | Updated：2023-01-03

- IN SITU OBSERVATION OF MELTING AND CRYSTALLIZATION BEHAVIORS OF POLY(ε-CAPROLACTONE) ULTRA-THIN FILMS BY AFM TECHNIQUE
- Chinese Journal of Polymer Science Vol. 31, Issue 9, Pages: 1321-1328(2013)
- Affiliations：
  
  a.School of Material Science & Engineering, Shandong Polytechnic University, Jinan 250353, China
  b.School of Material Science & Engineering, Tianjin University, Tianjin 300072, China
  c.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Author bio：
  
  **Cong-de Qiao (乔从德), E-mail: cdqiao@spu.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1333-5
  CLC：
- Received：09 June 2013，
  
  Revised：2013-07-02，
  
  Accepted：08 July 2013，
  
  Published：2013-09
- Accepted：
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Cong-de Qiao, Shi-chun Jiang, Xiang-ling Ji, et al. IN SITU OBSERVATION OF MELTING AND CRYSTALLIZATION BEHAVIORS OF POLY(ε-CAPROLACTONE) ULTRA-THIN FILMS BY AFM TECHNIQUE[J]. Chinese Journal of Polymer Science, 2013, 31(9): 1321-1328. DOI: 10.1007/s10118-013-1333-5.
DOI：

Cong-de Qiao, Shi-chun Jiang, Xiang-ling Ji, et al. IN SITU OBSERVATION OF MELTING AND CRYSTALLIZATION BEHAVIORS OF POLY(ε-CAPROLACTONE) ULTRA-THIN FILMS BY AFM TECHNIQUE[J]. Chinese Journal of Polymer Science, 2013, 31(9): 1321-1328. DOI: 10.1007/s10118-013-1333-5. DOI：

摘要

Abstract

The melting and crystallization behaviors of poly(

-caprolactone) (PCL) ultra-thin films with thickness from 15 nm to 8 nm were studied by AFM technique equipped with a hot-stage in real-time. It was found that melting can erase the spherulitic structure for polymer film with high thickness. However

annealing above the melting point can not completely erase the tree-like structure for the thinner polymer film. Generally

the structure formation of thin polymer films of PCL is controlled not only by melting and crystallization but also by dewetting during thermal annealing procedures

and dewetting predominates in the structure formation of ultra-thin films. However

the presence of tree-like morphology at 75℃ may be due to the strong interaction between PCL and mica surface

which may stick the PCL chains onto the mica surface during thermal annealing process. Moreover

the growth of the dendrites was investigated and it was found that crystallization is followed from a dewetted sample

and the branches did not grow with the stems. The crystallization of polymer in the ultrathin films is a diffusion-controlled process. Both melting and crystallization behaviors of PCL in thin films are influenced by film thickness.

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IN SITU OBSERVATION OF MELTING AND CRYSTALLIZATION BEHAVIORS OF POLY(ε-CAPROLACTONE) ULTRA-THIN FILMS BY AFM TECHNIQUE

DOI：10.1007/s10118-013-1333-5

摘要

Abstract

关键词

Keywords

references