Internal Structure of Hydroxypropyl Cellulose Nanofibers Prepared by Electrospinning from Different Phases of Aqueous Solutions

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  • DANNO Tetsuya
    Department of Clothing and Textiles, Faculty of Home Economics, Otsuma Women’s University
  • HASEGAWA Emi
    Department of Organic and Polymeric Materials, Tokyo Institute of Technology
  • KONOSU Yuichi
    Department of Organic and Polymeric Materials, Tokyo Institute of Technology
  • MINAGAWA Mie
    Department of Organic and Polymeric Materials, Tokyo Institute of Technology
  • TOKITA Masatoshi
    Department of Organic and Polymeric Materials, Tokyo Institute of Technology
  • MATSUMOTO Hidetoshi
    Department of Organic and Polymeric Materials, Tokyo Institute of Technology
  • TANIOKA Akihiko
    Department of Organic and Polymeric Materials, Tokyo Institute of Technology

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Other Title
  • 溶液構造の異なるヒドロキシプロピルセルロース水溶液から電界紡糸により作製したナノファイバーの内部構造
  • ヨウエキ コウゾウ ノ コトナル ヒドロキシプロピルセルロース スイヨウエキ カラ デンカイ ボウシ ニ ヨリ サクセイ シタ ナノファイバー ノ ナイブ コウゾウ

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Abstract

Liquid crystal polymer (LCP) nanofibers were prepared by electrospinning from hydroxypropyl cellulose (HPC) aqueous solutions at various concentrations and temperatures. At room temperature, the HPC aqueous solution exhibited an isotropic-cholesteric phase transition at 42 wt%. By increasing temperature, the solutions showed a biphasic structure—a mixture of LC and isotropic phases at 35–50°C. Smooth and bead-free HPC fibers were obtained by electrospinning from all, the isotropic, cholesteric, and biphasic solutions. In all the electrospun fibers, HPC molecules oriented parallel to the fiber axis with a spacing of 11 Å. In addition, the molecular orientation parameter along the fiber axis showed high values between 0.80 and 0.86 regardless of the difference in the structure of the aqueous solution.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 73 (4), 354-360, 2016

    The Society of Polymer Science, Japan

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