The Wetting Process of a Dry Polymeric Hydrogel.

  • Ji Shichen
    Department of Macromolecular Science, Key Laboratory of Molecular Engineering of Polymers, Fudan University
  • Ding Jiandong
    Department of Macromolecular Science, Key Laboratory of Molecular Engineering of Polymers, Fudan University

書誌事項

タイトル別名
  • Wetting Process of a Dry Polymeric Hydrogel

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説明

The swelling of a dry cylindrical poly(acrylic acid-co-acrylamide) gel was observed in real time after immersed in water. Pattern formation was found during this process. The wetting process is divided into three stages: first, swelling in the radial direction with cusp-like patterns evolving on the surface; second, shrinking in the radial direction while swelling in the axial direction; the last one, re-swelling in the radial direction. The movement of the wetting front at the first stage exhibits Case II like diffusion of water in polymeric network.

収録刊行物

  • Polymer Journal

    Polymer Journal 34 (4), 267-270, 2002

    The Society of Polymer Science, Japan

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