ポリL乳酸へのオリゴマーD乳酸の添加が構造と物性に及ぼす効果 Structure and Physical Properties of Poly(L-lactic acid)/Oligomeric(D-lactic acid) Blends

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D-lactic acid was synthesized from D-lactic acid methyl ester. Oligomeric (D-lactic acid) (ODLA) was prepared by dehydration condensation of D-lactic acid under high temperature and reduced pressure. Blend films of poly(L-lactic acid) (PLLA) and oligomeric (D-lactic acid) (ODLA) were obtained by cast method from their chloroform solutions. Properties of the blends were studied by polarizing microscopy, wide-angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), dynamic viscoelasticity measurement and tensile test. WAXD and DSC results showed that the stereocomplex crystal was formed in the blends and the melting temperature was higher than that of PLLA crystal. It was found from the results of DSC and dynamic viscoelasticity measurements that the formation of stereocomplex crystal disturbed the mobility of PLLA chain in the amorphous region of the blends. Furthermore, it was found that the mechanical properties of the PLLA film were hardly influenced by the addition of ODLA.

収録刊行物

  • 繊維学会誌  

    繊維学会誌 62(9), 199-204, 2006-09-10 

    The Society of Fiber Science and Technology, Japan

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各種コード

  • NII論文ID(NAID)
    10018052811
  • NII書誌ID(NCID)
    AN00131651
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00379875
  • NDL 記事登録ID
    8092599
  • NDL 雑誌分類
    ZP33(科学技術--繊維工学・工業)
  • NDL 請求記号
    Z17-189
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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