Citation: He-fei Chang, Hua-yi Li, Tao Zheng, Qian Zhou, Liao-yun Zhang, You-liang Hu. Application of Successive Self-nucleation and Annealing to Study the Stereo-defects Distribution of Biaxially Oriented Polypropylene[J]. Chinese Journal of Polymer Science, ;2014, 32(3): 362-370. doi: 10.1007/s10118-014-1412-2 shu

Application of Successive Self-nucleation and Annealing to Study the Stereo-defects Distribution of Biaxially Oriented Polypropylene

He-fei Chang ^1,2,3 ,
Hua-yi Li ⁴ ,
Tao Zheng ⁵ ,
Qian Zhou ⁵ ,
Liao-yun Zhang ⁵ ,
You-liang Hu ⁴

1.
1. College of Chemistry and Chemical Engineering,University of Chinese Academy of Sciences, Beijing 100049, China
2.
2. Performance Materials R&
3.
4.
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
5.
College of Chemistry and Chemical Engineering,University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 31 May 2013
Revised Date: 9 October 2013

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 51073170).

The stereo-defects distribution of polypropylene of the two industry biaxially oriented polypropylene (BOPP) samples T28FE and F28SO with different processing properties was studied through successive self-nucleation and annealing (SSA) technique. It was found that there were more medium isotactic components in sample F28SO, and the isotactic sequence length of polypropylene of sample F28SO was shorter and the isotactic sequence length distribution of polypropylene of sample F28SO was broader, which could be processed well at high-speed orientation during the processing of BOPP films. This result indicates that the isotactic sequence length distribution of polypropylene is related to the processing speed during preparing BOPP films, and the stereo-defects distribution of polypropylene has an important influence on its processing ability.
- BOPP,
- Lamellar thickness,
- Isotactic sequence length,
- Successive self-nucleation and annealing
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