ヨウ素処理したポリビニルアルコールの炭素化挙動 Carbonization behavior of iodinated poly(vinyl alcohol)

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In this paper, the author reports the role of iodine treatment in the carbonization of poly(vinyl alcohol) (PVA) and preparation of carbon fibers from PVA fiber. PVA can be converted to carbon materials with the assistance of iodine-vapor or iodinesolution treatment at around 90 °C. Iodine acts as a dehydrating agent to withdraw water molecules from PVA chains leading to the generation of polyenes. Furthermore, iodine promotes the formation of a polycyclic aromatic structure by the intermolecular crosslinking reaction of polyenes and the dehydropolymerization of the polycyclic rings formed. Consequently, the carbonization yield of iodinated PVA is extremely increased (<i>ca.</i> 40–50 wt% of the original PVA weight), while uniodinated PVA exhibits only several percent to near zero. The preparation conditions of carbon fibers from iodinated PVA are described in detail. A unique method for the preparation of a hollow carbon fiber, which is produced from a solid PVA fiber precursor by selective iodination within the fiber cross-section close to the fiber surface, is also mentioned.

収録刊行物

  • 炭素 = Carbons

    炭素 = Carbons (250), 263-268, 2011-11-15

    炭素材料学会

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各種コード

  • NII論文ID(NAID)
    10030279159
  • NII書誌ID(NCID)
    AN00140335
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03715345
  • NDL 記事登録ID
    023430300
  • NDL 請求記号
    Z17-230
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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