Two dimensional size controlled confinement of poly(vinyl pyrrolidone) in the interlayer space of swelling clay mineral

Minoru Sohmiya, Shingo Omata, Makoto Ogawa

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    A water soluble polymer, poly(vinyl pyrrolidone) (PVP), was intercalated into the two dimensional interlayer space of a layered silicate, synthetic saponite (Sumecton SA; Kunimine Ind. Co.), which adsorbed rhodamine 6G (R6G) by ion exchange. The basal spacing was systematically controlled up to ca. 5 nm by the change of PVP to SA weight ratio. Depending on the expansion of the interlayer space, the luminescence self-quenching efficiency varied, possibly because of the distance between R6G, which directly correlated with the possibility of self-quenching. In addition, R6G degradation upon artificial sunlight irradiation was suppressed in the PVP-saponite system.

    Original languageEnglish
    Pages (from-to)1069-1074
    Number of pages6
    JournalPolymer Chemistry
    Volume3
    Issue number4
    DOIs
    Publication statusPublished - 2012 Apr

    Fingerprint

    Pyrrolidinones
    Clay minerals
    Minerals
    Swelling
    Quenching
    Silicates
    Luminescence
    Ion exchange
    Sunlight
    Ion Exchange
    Irradiation
    Degradation
    Polymers
    Weights and Measures
    Water
    rhodamine 6G
    clay
    saponite

    ASJC Scopus subject areas

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

    Cite this

    Two dimensional size controlled confinement of poly(vinyl pyrrolidone) in the interlayer space of swelling clay mineral. / Sohmiya, Minoru; Omata, Shingo; Ogawa, Makoto.

    In: Polymer Chemistry, Vol. 3, No. 4, 04.2012, p. 1069-1074.

    Research output: Contribution to journalArticle

    Sohmiya, Minoru ; Omata, Shingo ; Ogawa, Makoto. / Two dimensional size controlled confinement of poly(vinyl pyrrolidone) in the interlayer space of swelling clay mineral. In: Polymer Chemistry. 2012 ; Vol. 3, No. 4. pp. 1069-1074.
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