Citation: Qian-Hong Jiang, Chun-Bo Zhang, Jian Yang, Ying Zhao, Yi-Zhuang Xu, Du-Jin Wang. Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy[J]. Chinese Chemical Letters, ;2015, 26(2): 197-199. doi: 10.1016/j.cclet.2015.01.015 shu

Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy

1.
a Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing; 100190, China;
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b College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Corresponding author: Ying Zhao, Yi-Zhuang Xu,
Received Date: 2 November 2014
Available Online: 31 December 2014
Fund Project: This project is financially supported by the National Natural Science Foundation of China (No. 51373003). The BSRF is acknowledged for kindly providing the beam time. (No. 51373003)

Two-dimensional FT-IR correlation spectroscopy was used to reveal the structural changes of isotactic polypropylene (iPP) mesophase during the heating process. The co-relationship among the regular helical bands of iPP was discussed according to synchronous spectrum. The results show that the segments with different length-helixes were found to undergo a disordered process in the temperature range of 25-60℃.
- 2D-IR,
- Isotactic polypropylene,
- Mesophase
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沈阳化工大学材料科学与工程学院沈阳 110142