Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends

Bin Su; Yong-sheng Zhao; Feng Chen; Qiang Fu

doi:10.1007/s10118-015-1649-4

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Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends

PAPER | Updated：2021-06-21

- Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends
- Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends
- Chinese Journal of Polymer Science 2015年33卷第7期页码：964-975
- Affiliations：
  
  College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  **Feng Chen (陈枫), E-mail: fengchen@scu.edu.cn
  Qiang Fu (傅强), E-mail: qiangfu@scu.edu.cn
- Funds：
  
  National Natural Science Foundation of China(51173112;51121001);Major State Basic Research Projects of China(2011CB606006)
- DOI：10.1007/s10118-015-1649-4
  中图分类号：
- 收稿：2014-10-27，
  
  修回：2015-01-22，
  
  录用：2015-01-31，
  
  纸质出版：2015-07
- Accepted：
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Bin Su, Yong-sheng Zhao, Feng Chen, 等. Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends[J]. Chinese Journal of Polymer Science, 2015,33(7):964-975.

Bin Su, Yong-sheng Zhao, Feng Chen, et al. Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends[J]. Chinese Journal of Polymer Science, 2015, 33(7): 964-975.
Bin Su, Yong-sheng Zhao, Feng Chen, 等. Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends[J]. Chinese Journal of Polymer Science, 2015,33(7):964-975. DOI： 10.1007/s10118-015-1649-4.

Bin Su, Yong-sheng Zhao, Feng Chen, et al. Effect of Microdomain Structure on the Mechanical Behavior of Binary Blends[J]. Chinese Journal of Polymer Science, 2015, 33(7): 964-975. DOI： 10.1007/s10118-015-1649-4.

摘要

Abstract

The relationship between microphase structure and mechanical response of the binary blends consisting of polystyrene-block-polyisoprene-block-polystyrene copolymer and low molecular weight polystyrene has been investigated. Low molecular weight polystyrene was chosen to obtain uniformly solubilized nano-blends without macrophase separation. The specimens were solution-cast by adding different amounts of homo-polystyrene to acquire different microphase structures. Small angle X-ray scattering (SAXS)

transmission electron microscopy (TEM) and atom force microscopy (AFM) have been used to study the microdomain and grain structure. It is observed that the structural changes in

-spacing and grain size on account of different amounts of polystyrene alter the mechanical behavior in both monotonic tensile and cyclic tests. The elastic and the Mullins effects are strongly sensitive to the changes in

-spacing and grain sizes. Moreover

the sample with bi-continuous structure shows the largest tensile strength and Mullins effect. In addition

the Mooneye-Rivlin phenomenological model was used to evaluate and explore the relationship between the polymer topological networks and the rubber elasticity of these styrenic nano-blends.

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