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Blends of poly(L-lactic acid) with poly(ω-pentadecalactone) synthesized by enzyme-catalyzed polymerization

Authors

  • Koji Nakane,

    Corresponding author
    1. Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
    • Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
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  • Chiharu Tamaki,

    1. Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
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  • Yoshihiro Hata,

    1. Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
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  • Takashi Ogihara,

    1. Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
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  • Nobuo Ogata

    1. Materials Science and Engineering Course, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
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Abstract

Poly(ω-pentadecalactone) (PPDL) was synthesized by enzyme-catalyzed polymerization. The molecular weight of the PPDL was about 35,000. Opaque poly(L-lactic acid) (PLLA)/PPDL blend films were created by the solvent casting technique. The addition of PPDL led to PLLA crystallization. Furthermore, the addition of PPDL with PLLA increased both the Young's modulus [pure PLLA : 0.67 GPa, PLLA/PPDL (70/30 wt %) : 1.01 GPa] and the PLLA glass transition temperature. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

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