Nonisothermal Crystallization Kinetics of Biodegradable Random Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and Block One

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The kinetics of nonisothermal crystallization in a novel microbial synthesis of a biodegradable block copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate), P(HB-co-HV), in which the mole fractions of 3HV units are 7 and 10 mol%, were studied by differential scanning calorimetry (DSC). The kinetics of the block copolymer under nonisothermal crystallization conditions was analyzed by Ozawa’s equation using three different methods. The comparison of nonisothermal crystallization of the block P(HB-co-HV) copolymer, homopolymer polyhydroxybutyrate, PHB, and random P(HB-co-HV) copolymer, in which the mole fractions of 3HV units are 6 and 12 mol%, was performed. It was found that the <I>n</I> values of the block P(HB-co-7% HV) and block P(HB-co-10% HV) are the same as that of PHB, and have been found to be close to 3. The <I>n</I> values of the random P(HB-co-6% HV) and random P(HB-co-12% HV) have been found to be close to 1. It was obvious that the nonisothermal crystallization rate of block polymers was faster than that of random polymers.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 36(6), 639-646, 2003-06-01

    公益社団法人 化学工学会

参考文献:  16件中 1-16件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10013413402
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    6577472
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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