Bleeding Surfactant at the Surface of Polyethylene Blend Films

DOI Web Site 16 References
  • FUKASAWA Yoshihito
    Construction Materials Laboratory, Asahi Kasei Construction Materials Corporation
  • OKUDA Tohru
    Packaging Products Technology Department, Packaging Products Division, Asahi Kasei Chemicals Corporation
  • SHIMADA Tomoko
    Advanced Medical Device Center, Central R&D Laboratories, Asahi Kasei Corporation
  • HATTORI Makiko
    Analysis and Simulation Center, Asahi Kasei Corporation
  • SAITO Hiromu
    Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology

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Other Title
  • ポリエチレンフィルムの界面活性剤ブリードアウト表面の解析
  • ポリエチレン フィルム ノ カイメン カッセイザイ ブリードアウト ヒョウメン ノ カイセキ

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Abstract

We investigated the changes in the surface structure of the polyethylene/surfactant blend films due to the annealing. The measurements of attenuated total reflectance-infrared spectroscopy and grazing incidence X-ray diffraction revealed that the amount of the surfactant at the surface increased with increasing the annealing time, suggesting that the surfactant bleeds out to the surface of the film during the annealing. A mosaic-shaped step structure of the surfactant crystals was observed under atomic force microscope at the surface of the annealed blend films', each step height was roughly the length of four to twenty surfactant molecules. Owing to the bleed of the surfactant, the polarity of the film surface changed from hydrophobic to hydrophilic by the annealing. Such structure changes of the film surface can control the gas permeability of the blend films.<br>

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 65 (1), 98-103, 2008

    The Society of Polymer Science, Japan

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