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| Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy |
| Qian-Hong Jianga, Chun-Bo Zhanga, Jian Yanga, Ying Zhaoa, Yi-Zhuang Xub, Du-Jin Wanga |
a Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing; 100190, China;
b College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China |
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Abstract 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℃.
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Received: 02 November 2014
Published: 21 January 2015
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| Fund: 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. |
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Corresponding Authors:
Ying Zhao, Yi-Zhuang Xu
E-mail: yzhao@iccas.ac.cn;xyz@pku.edu.cn
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