Peroxidase-Catalyzed Oxidative Polymerization of Cresols to a New Family of Polyphenols

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Author(s)

    • UYAMA Hiroshi
    • Department of Molecular Chemistry and Engineering, Faculty of Engineering, Tohoku University
    • KURIOKA Hideharu
    • Department of Molecular Chemistry and Engineering, Faculty of Engineering, Tohoku University
    • SUGIHARA Junji
    • Department of Molecular Chemistry and Engineering, Faculty of Engineering, Tohoku University
    • KOMATSU Izuru
    • Department of Molecular Chemistry and Engineering, Faculty of Engineering, Tohoku University
    • KOBAYASHI Shiro
    • Department of Molecular Chemistry and Engineering, Faculty of Engineering, Tohoku University

Abstract

Enzymatic oxidative polymerization of cresols has been performed by using peroxidase catalyst in two types of polymerization solvent: an aqueous organic solution and a reverse micellar solution, to produce polymeric materials. Peroxidases derived from horseradish and soybean were employed as catalyst. The resulting polymers were partly soluble in DMF and DMSO, but, insoluble in water and other common organic solvents. The molecular weight of the DMF-soluble part was measured by GPC as ca. 5000. The solubility and molecular weight were dependent upon the polymerization condition and monomer structure. From IR and UV analyses, the polymer was found to be composed of a mixture of phenylene and oxyphenylene units. The polymer possessed no clear glass transition or melting points. TG analysis exhibited that the present polymers have relatively high thermal stability. The stability of the polymer from <i>o</i>- and <i>m</i>-cresols was better than that from the <i>p</i>-isomer. The polymer remained in around 40 weight % yield at 1000 °C under nitrogen.

Journal

  • Bulletin of the Chemical Society of Japan

    Bulletin of the Chemical Society of Japan 68(11), 3209-3214, 1995-11-15

    The Chemical Society of Japan

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Codes

  • NII Article ID (NAID)
    10008895432
  • NII NACSIS-CAT ID (NCID)
    AA00580132
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    00092673
  • Data Source
    CJP  J-STAGE 
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