MICROSTRUCTURE EVOLUTION OF ISOTACTIC POLYPROPYLENE DURING ANNEALING: EFFECT OF POLY(ETHYLENE OXIDE)

Hai-yan Wu; Xiao-xi Li; Fang-ming Xiang; Ting Huang; Yun-yun Shi; Yong Wang

doi:10.1007/s10118-012-1121-7

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MICROSTRUCTURE EVOLUTION OF ISOTACTIC POLYPROPYLENE DURING ANNEALING: EFFECT OF POLY(ETHYLENE OXIDE)

PAPER | Updated：2023-01-03

- MICROSTRUCTURE EVOLUTION OF ISOTACTIC POLYPROPYLENE DURING ANNEALING: EFFECT OF POLY(ETHYLENE OXIDE)
- Chinese Journal of Polymer Science Vol. 30, Issue 2, Pages: 199-208(2012)
- Affiliations：
  
  Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science & Engineering, Southwest Jiaotong University, Chengdu 610031, China
- Author bio：
  
  **Yong Wang (王勇), E-mail: yongwang1976@163.com
- Funds：
- DOI：10.1007/s10118-012-1121-7
  CLC：
- Received：21 March 2011，
  
  Revised：2011-04-23，
  
  Accepted：27 April 2011，
  
  Published：2012-03
- Accepted：
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Hai-yan Wu, Xiao-xi Li, Fang-ming Xiang, et al. MICROSTRUCTURE EVOLUTION OF ISOTACTIC POLYPROPYLENE DURING ANNEALING: EFFECT OF POLY(ETHYLENE OXIDE)[J]. Chinese Journal of Polymer Science, 2012, 30(2): 199-208.
DOI：

Hai-yan Wu, Xiao-xi Li, Fang-ming Xiang, et al. MICROSTRUCTURE EVOLUTION OF ISOTACTIC POLYPROPYLENE DURING ANNEALING: EFFECT OF POLY(ETHYLENE OXIDE)[J]. Chinese Journal of Polymer Science, 2012, 30(2): 199-208. DOI： 10.1007/s10118-012-1121-7.

摘要

Abstract

The microstructure evolution of isotactic polypropylene (

PP) during annealing is reported. A few amount of poly(ethylene oxide) (PEO) which exhibits much lower melt temperature compared with

PP was introduced into

PP in this work. The crystalline structure of

PP was detected using differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD)

and the relaxation of

PP was characterized using dynamic mechanical analysis (DMA). The variation of PEO morphology was investigated by scanning electron microscopy (SEM). The results show that the crystallization

including the primary crystallization and second crystallization during annealing

as well as the relaxation of

PP matrix is promoted with the presence of PEO.

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