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Dynamic relaxation of polystyrene/poly(ethylene oxide) blends above glass transition temperature

Wu Xue-Bang Shang Shu-Ying Xu Qiao-Ling Shui Jia-Peng Zhu Zhen-Gang

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Dynamic relaxation of polystyrene/poly(ethylene oxide) blends above glass transition temperature

Wu Xue-Bang, Shang Shu-Ying, Xu Qiao-Ling, Shui Jia-Peng, Zhu Zhen-Gang
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  • A series of blends with different compositions were prepared by melt-mixing on the basis of polystyrene and poly(ethylene oxide). Using the relative energy dissipation method, the dynamic behavior of the blends above the glass transition temperature was investigated. Two relaxational dissipation peaks (α and α′) were observed. It is suggested that peak α is associated with the glass transition of polystyrene and peak α′ with the liquid-liquid transition. The relaxation time τ of both relaxations does not satisfy the Arrhenius law. The effect of composition on the dynamic relaxation of the blends were also discussed qualitatively.
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  • Abstract views:  7012
  • PDF Downloads:  1367
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Publishing process
  • Received Date:  12 December 2006
  • Accepted Date:  19 January 2007
  • Published Online:  05 April 2007

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