Evidence for the formation of interlayer polyacrylonitrile in kaolinite

Yoshiyuki Sugahara, S. Satokawa, Kazuyuki Kuroda, C. Kato

    Research output: Chapter in Book/Report/Conference proceedingChapter

    89 Citations (Scopus)

    Abstract

    A kaolinite-polymer intercalation complex was apparently formed for the first time by the polymerization of acrylonitrile between the kaolinite layers. A kaolinite-ammonium acetate intercalation complex was dispersed in acrylonitrile monomer. The monomer was apparently incorporated between the layers by displacing intercalated ammonium acetate. After the removal of excess monomer, the intercalation complex was heated to cause polymerization. The resulting kaolinite-polyacrylonitrile (PAN) intercalate showed a basal spacing of ~13-14 A. On heating the complex at 220°C for 1 hr in air, the spacing decreased slightly. The hydrogen bond between the hydroxyls of kaolinite and probably the C≡N group of PAN was not affected after heating at 220°C. Even after heating at 400°C, the layers expanded. Because the starting kaolinite-ammonium acetate intercalation complex decomposed at a much lower temperature, these observations strongly suggest the presence of PAN between the layers. -Authors

    Original languageEnglish
    Title of host publicationClays & Clay Minerals
    Pages343-348
    Number of pages6
    Volume36
    Edition4
    Publication statusPublished - 1988

    Fingerprint

    polyacrylonitrile
    Kaolin
    kaolinite
    Intercalation
    ammonium acetate
    Acrylonitrile
    acetate
    ammonium
    Monomers
    heating
    heat
    Heating
    polymerization
    spacing
    Polymerization
    spatial distribution
    Hydroxyl Radical
    hydrogen
    polymers
    Hydrogen bonds

    ASJC Scopus subject areas

    • Earth and Planetary Sciences(all)
    • Environmental Science(all)
    • Soil Science
    • Earth and Planetary Sciences (miscellaneous)
    • Geochemistry and Petrology
    • Water Science and Technology

    Cite this

    Sugahara, Y., Satokawa, S., Kuroda, K., & Kato, C. (1988). Evidence for the formation of interlayer polyacrylonitrile in kaolinite. In Clays & Clay Minerals (4 ed., Vol. 36, pp. 343-348)

    Evidence for the formation of interlayer polyacrylonitrile in kaolinite. / Sugahara, Yoshiyuki; Satokawa, S.; Kuroda, Kazuyuki; Kato, C.

    Clays & Clay Minerals. Vol. 36 4. ed. 1988. p. 343-348.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Sugahara, Y, Satokawa, S, Kuroda, K & Kato, C 1988, Evidence for the formation of interlayer polyacrylonitrile in kaolinite. in Clays & Clay Minerals. 4 edn, vol. 36, pp. 343-348.
    Sugahara Y, Satokawa S, Kuroda K, Kato C. Evidence for the formation of interlayer polyacrylonitrile in kaolinite. In Clays & Clay Minerals. 4 ed. Vol. 36. 1988. p. 343-348
    Sugahara, Yoshiyuki ; Satokawa, S. ; Kuroda, Kazuyuki ; Kato, C. / Evidence for the formation of interlayer polyacrylonitrile in kaolinite. Clays & Clay Minerals. Vol. 36 4. ed. 1988. pp. 343-348
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    N2 - A kaolinite-polymer intercalation complex was apparently formed for the first time by the polymerization of acrylonitrile between the kaolinite layers. A kaolinite-ammonium acetate intercalation complex was dispersed in acrylonitrile monomer. The monomer was apparently incorporated between the layers by displacing intercalated ammonium acetate. After the removal of excess monomer, the intercalation complex was heated to cause polymerization. The resulting kaolinite-polyacrylonitrile (PAN) intercalate showed a basal spacing of ~13-14 A. On heating the complex at 220°C for 1 hr in air, the spacing decreased slightly. The hydrogen bond between the hydroxyls of kaolinite and probably the C≡N group of PAN was not affected after heating at 220°C. Even after heating at 400°C, the layers expanded. Because the starting kaolinite-ammonium acetate intercalation complex decomposed at a much lower temperature, these observations strongly suggest the presence of PAN between the layers. -Authors

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