Water Content Near Surface of Poly(dimethyl siloxane)-<i>co</i>-poly(<i>N</i>,<i>N</i>-dimetly acrylamide) Hydrogel Revealed by Neutron Reflectivity Measurements

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  • YAMAMOTO Katsuhiro
    Frontier Research Institute for Materials Science, Nagoya Institute of Technology Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
  • ITO Eri
    Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology Corporate Communication Department, Corporate Management Division, Menicon Co., Ltd.
  • MORI Yuka
    Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
  • MIYAZAKI Tsukasa
    Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS)
  • YAMADA Norifumi L.
    Neutron Science Laboratory, High Energy Accelerator Research Organization (KEK)

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Other Title
  • 中性子反射率法によるポリジメチルシロキサン-<i>co</i>-ポリジメチルアクリルアミド含水ゲル表面の含水性評価
  • 中性子反射率法によるポリジメチルシロキサン-co-ポリジメチルアクリルアミド含水ゲル表面の含水性評価
  • チュウセイシ ハンシャ リッポウ ニ ヨル ポリジメチルシロキサン-co-ポリジメチルアクリルアミド ガンスイ ゲル ヒョウメン ノ ガンスイセイ ヒョウカ

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Abstract

Telechelic poly(dimethylsiloxane) (PDMS), α,ω-terminated with acryloyl groups, was copolymerized with N,N-dimethyl acrylamide (DMAA) monomer to obtain a transparent gel. The gels have a phase separated structure on the nanometer scale, composed of hydrophobic (PDMS) and hydrophilic (PDMAA) domains. The gels can be swollen with water (deuterium water) that hydrates PDMAA only. This hydrogel has been used for soft contact lenses. The water content near the hydrogel surface of native and oxygen plasma treated samples was analyzed by neutron reflectivity measurements. The water content near the surface of the modified hydrogel was found to be much higher than that of non-treated samples.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 74 (1), 36-40, 2017

    The Society of Polymer Science, Japan

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