空気/水界面におけるポリペプチド-ポリエチレングリコール共重合体の2次元ナノ相分離構造 Nano-Architecture of Peptide-Poly (ethylene glycol) Diblock Copolymer at Air/Water Interface

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The self-assembled nanostructure of an amphiphilic peptide-poly(ethylene glycol)(PEG) diblock copolymer at the air/water interface was investigated. A polypeptide segment wtih alternating hydrophobic and hydrophilic amino acid residues (RFDF16) was designed to form a β-sheet structure. The surface pressure-area (π-A) isotherm of RFDF16-PEG suggested that the conformation at the air/water interface changed from a flattened one to a brush one due to the dissolution of PEG segments into water subphase. Langmuir-Blodgett (LB) films of RFDF16-PEG at several surface pressures showed grains and fibrils depending on the surface pressure. The AFM image showed grains at the low surface pressure. The observed aggregates became elongated and nano-striped upon compression to a higher surface pressure. These differences were caused by the phase separation based on the composition of the diblock copolymer on the water surface.<br>

収録刊行物

  • 高分子論文集  

    高分子論文集 64(2), 132-134, 2007-02-25 

    The Society of Polymer Science, Japan

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各種コード

  • NII論文ID(NAID)
    10018576539
  • NII書誌ID(NCID)
    AN00085011
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    03862186
  • NDL 記事登録ID
    8726331
  • NDL 雑誌分類
    ZP16(科学技術--化学・化学工業--高分子化学・高分子化学工業)
  • NDL 請求記号
    Z17-92
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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