Effects of Molecular Structure on Enzymatic Degradation of Polyesters

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  • BABA Hiromitsu
    Research Laboratory of Resources Utilization, Tokyo Institute of Technology;
  • TANAHASHI Naoki
    Research Laboratory of Resources Utilization, Tokyo Institute of Technology;
  • KUMAGAI Yoshiharu
    Research Laboratory of Resources Utilization, Tokyo Institute of Technology;
  • Doi Yoshiharu
    Research Laboratory of Resources Utilization, Tokyo Institute of Technology;

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Other Title
  • 酵素分解性におよぼずポリエステルの分子構造効果
  • Special Articles on Chemistry and Technology for Recycling Inorganic and Organic Materials. Effects of Molecular Structure on Enzymatic Degradation of Polyesters.

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Description

Enzymatic degradation of eleven types of microbial and synthetic polyesters; poly[(R)-3hydroxybutyrate] (1), poly[ (S)-3-hydroxybutyrate] ( 2 ), atactic poly[ (R, S)-3-hydroxybutyrate]( 3 ), poly[ (R)-3-hydroxyvalerate] ( 4 ), poly (3-hydroxypropionate) ( 5 ), poly[ (R)2-hydroxypropionate] ( 6 ), poly(4-hydroxybutyrate) ( 7 ), poly(5-hydroxyvalerate) (8 ), poly (6-hydroxyhexanoate) ( 9 ), poly(ethylene adipate) (10) and poly(1, 4-butylene adipate) (11)was investigated at 37 °Cand pH 7.4 in the aqueous solution of extracellular P(3 HB) depolymerase from Alcaligenes faecalis. The rate of enzymatic degradation decreased in the following order; (1)=(5)>(10)>(3)>(4)=(7)>(2)=(6)=(8)=(9)=(11)=0.<BR>The relatio n between the molecular structure and the rate of enzymatic degradation of polyesters has been discussed.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1992 (5), 527-533, 1992-05-10

    The Chemical Society of Japan

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