The isothermal crystallization of syndiotactic polypropylene (sPP) was investigated by in situ Fourier transform infrared spectroscopy (FTIR) and wide angle X-ray diffraction (WAXD). It was found that the ordered helical structure developed during the induction period of the isothermally crystalliza
In Situ FTIR Spectroscopic Study of the Conformational Change of Isotactic Polypropylene during the Crystallization Process
β Scribed by Zhu, Xinyuan; Yan, Deyue; Fang, Yapeng
- Book ID
- 121315339
- Publisher
- American Chemical Society
- Year
- 2001
- Tongue
- English
- Weight
- 53 KB
- Volume
- 105
- Category
- Article
- ISSN
- 0022-3654
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The melt crystallization process of isotactic polystyrene ( i-PS) was studied by means of in situ Fourier transform infrared (FTIR) spectroscopy, with a focus on the conformational changes during the induction period. The spectra obtained during the induction period suggested the occurrence of some
## Abstract The conformational changes occurring in isotactic polypropylene during the melting and crystallization processes have been carefully investigated using FTβRaman spectroscopy at temperatures below, at, and above the polymer melting point. Results confirmed the retention of some crystalli