The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging

Wei Chen; Xiang-yang Li; Yan-ping Liu; Jing Li; Wei-ming Zhou; Liang Chen; Liang-bin Li

doi:10.1007/s10118-015-1613-3

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The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging

PAPER | Updated：2021-06-21

- The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging
- The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging
- Chinese Journal of Polymer Science 2015年33卷第4期页码：613-620
- Affiliations：
  
  National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230009, China
- Author bio：
  
  **Liang Chen (陈亮), E-mail: rychen@ustc.edu.cn
  Liang-bin Li (李良彬), E-mail: lbli@ustc.edu.cn
- Funds：
  
  China Postdoctoral Science Foundation(2012M521233);Fundamental Research Funds for the Central Universities(WK2310000031);This work was financially supported by the National Natural Science Foundation of China(51325301);973 program of MOST(2010CB934504)
- DOI：10.1007/s10118-015-1613-3
  中图分类号：
- 收稿：2014-08-01，
  
  修回：2014-08-26，
  
  录用：2014-09-13，
  
  纸质出版：2015-04
- Accepted：
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Wei Chen, Xiang-yang Li, Yan-ping Liu, 等. The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging[J]. Chinese Journal of Polymer Science, 2015,33(4):613-620.

Wei Chen, Xiang-yang Li, Yan-ping Liu, et al. The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging[J]. Chinese Journal of Polymer Science, 2015, 33(4): 613-620. DOI: 10.1007/s10118-015-1613-3.
Wei Chen, Xiang-yang Li, Yan-ping Liu, 等. The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging[J]. Chinese Journal of Polymer Science, 2015,33(4):613-620. DOI： 10.1007/s10118-015-1613-3.

Wei Chen, Xiang-yang Li, Yan-ping Liu, et al. The Spatial Correlation between Crystalline and Amorphous Orientations of Isotactic Polypropylene during Plastic Deformation: An in situ Observation with FTIR Imaging[J]. Chinese Journal of Polymer Science, 2015, 33(4): 613-620. DOI: 10.1007/s10118-015-1613-3. DOI：

摘要

Abstract

On the basis of research method in FTIR imaging

we made a heterogeneous thin film of isotactic polypropylene (

PP) that contains a few large spherulites (~150 μm) which are surrounded by small spherulites (~15 μm) for tensile testing. The evolution processes of crystalline and amorphous orientations of

PP are monitored with its characteristic peaks at 998 and 973 cm

-1

respectively. By introducing the correlation images

the analysis demonstrates the relationships between the orientation evolutions of crystalline and amorphous phases in a space of 250 μm × 250 μm detecting area. During the plastic deformation

crystalline orientation is higher than amorphous orientation outside the large spherulite

while that is opposite inside the region. In addition

the evolutions of crystalline and amorphous orientations almost keep a positive correlation.

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