Enhanced catalytic activity of oxovanadium complexes in oxidative polymerization of diphenyl disulfide

Fuyuki Aida, Yohei Takatori, Daichi Kiyokawa, Kentaro Nagamatsu, Kenichi Oyaizu, Hiroyuki Nishide

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    6 Citations (Scopus)

    Abstract

    Oxygen-oxidative polymerization of diphenyl disulfide gives poly(1,4-phenylene sulfide) (PPS), catalyzed by a vanadyl complex and a protic acid. N,N′-Ethylenebis(salicylideneaminato)oxovanadium(iv) (VO(salen)) which has been reported to be catalytically inactive at ambient temperature because of the insufficient reactivity of its oxidized state, an oxovanadium(v) complex, for the oxidation of the monomer turned out to exhibit an excellent catalytic activity on raising the reaction temperature above 100 °C. The enhanced reactivity of VO(salen)-acid or bis(2,4-pentanedionato)oxovanadium(iv) (VO(acac)2)-acid catalytic systems at elevated temperatures gave insight into the catalytic mechanism where oxidation of the monomer with the oxovanadium(v) complex dominated the reactivity, which was also accelerated by a second redox shuttle molecule, such as quinones with a potential near that of the [VO(salen)]0/+ couple.

    Original languageEnglish
    Pages (from-to)2087-2091
    Number of pages5
    JournalPolymer Chemistry
    Volume7
    Issue number11
    DOIs
    Publication statusPublished - 2016 Mar 21

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    ASJC Scopus subject areas

    • Polymers and Plastics
    • Organic Chemistry
    • Biochemistry
    • Biomedical Engineering
    • Bioengineering

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