Alkylsulfonioarylene and thioarylene polymers derived from sulfonium electrophiles

Eishun Tsuchida, Kenichi Oyaizu

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    Superacidification of sulfoxides and sulfinates effects the electrophilic substitution reaction of the resulting hydroxysulfonium ions onto aromatic rings with the elimination of H2O at room temperature. The present account emphasizes the utility of the reaction for use as an elementary step in organic synthesis. The product, the alkyldiarylsulfonium ion, often quantitatively obtained, allows the synthesis of alkylsulfonio-bridged (λ4-alkylsulfanyliumdiyl) aromatic polymers. High molecular-weight poly(alkylsulfonioarylene) salts with a wide range of structural dimensionalities from linear to network architectures have been made accessible by the regioselective condensation of aryl sulfoxides. The polymers possess interesting properties such as good solubility in polar organic solvents and sometimes even in H2O, susceptibility to nucleophiles to provide thioarylene derivatives, photo-degradability, and electric semiconductivity, according to the dimensionality of the molecule. The synthetic chemistry of the alkylsulfonioarylene polymers as well as their possible applications in high molecular-weight poly(thioarylene) synthesis, photochemical recycling processes of an engineering plastic poly(thio-1,4-phenylene), and photo-resist technologies, are reviewed.

    Original languageEnglish
    Pages (from-to)15-47
    Number of pages33
    JournalBulletin of the Chemical Society of Japan
    Volume76
    Issue number1
    DOIs
    Publication statusPublished - 2003

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    Sulfoxides
    Polymers
    Molecular weight
    Aromatic polymers
    Ions
    Nucleophiles
    Network architecture
    Organic solvents
    Recycling
    Condensation
    Substitution reactions
    Solubility
    Salts
    Plastics
    Derivatives
    Molecules
    Temperature

    ASJC Scopus subject areas

    • Chemistry(all)

    Cite this

    Alkylsulfonioarylene and thioarylene polymers derived from sulfonium electrophiles. / Tsuchida, Eishun; Oyaizu, Kenichi.

    In: Bulletin of the Chemical Society of Japan, Vol. 76, No. 1, 2003, p. 15-47.

    Research output: Contribution to journalArticle

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