Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-26T02:09:43.587Z Has data issue: false hasContentIssue false
  • English
  • Français

Intercalation of N-Alkyltrimethylammonium into Swelling Fluoro-Mica

Published online by Cambridge University Press:  28 February 2024

Kenji Tamura  and
Hiromoto Nakazawa
Kenji Tamura
Affiliation:
Kawasaki Plastics Laboratory, Showa Denko K.K., 3-2 Chidori-cho, Kawasaki-ku, Kawasaki, Kanagawa, 210 Japan
Hiromoto Nakazawa
Affiliation:
National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba, Ibaraki, 305 Japan
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Trimethylammonium ions (TMA+) with formula CH3(CH2)n-1N+(CH3)3, with n = 4, 8, 12, 16, 18 and 22 were intercalated into synthetic Li-fluorotaeniolite (Li-FTN) and Li-fluorohectorite (Li-FHT) by cation exchange. The products were analyzed by thermogravimetric (TGA) and X-ray powder diffraction (XRD). XRD patterns exhibited variable (001) spacings of the TMA+/mica complexes depending upon the exchange ratio of TMA+/Li+ and the carbon number of TMA+. Detailed inspection of these XRD patterns clarified the structures of the complexes and also the intercalation mechanism, as follows: The fundamental structure of the complexes is the commonly known intercalation structure where the “paraffin-type bilayers” of TMA+ are in the mica interlayer and their long chains incline at approximately 30° to the silicate sheet. This structure appeared at the final stage of the intercalation reaction. During the intermediate stage of the reaction, units of this structure and those of hydrated mica formed randomly and regularly interstratified structures. Variable (001) spacings in XRD patterns showed the structural change of the complex with an increasing number of TMA+-intercalated units.

Keywords

Fluoro-MicaIntercalationN-AlkyltrimethylammoniumXRD Cation Exchange
Type
Research Article
Information
Clays and Clay Minerals , Volume 44 , Issue 4 , August 1996 , pp. 501 - 505
Copyright
Copyright © 1996, The Clay Minerals Society

References

Farmar, V.C. and Mortland, M.M.. 1965. An infrared study of complexes of ethylamine with ethylammonium and copper ions in montmorillonite. J Phys Chem 69: 683–686.CrossRefGoogle Scholar
Fukushima, Y. and Inagaki, S.. 1987. Synthesis of an intercalated compound of montmorillonite and 6-polyamide. J Incl Phenom 5: 473–482.CrossRefGoogle Scholar
Lagaly, G. and Weiss, A.. 1969. Determination of the layer charge in mica-type layer silicates. In: Heller, L., editor. Proceedings of the International Clay Conference, Tokyo, Japan. p 61–80.Google Scholar
Johns, W.D. and Sen Gupta, P.K.. 1967. Vermiculite-alkyl ammonium complexes. Am Mineral 52: 1706–1724.Google Scholar
MacEwan, D.M.C. and Wilson, M.J.. 1980. Interlayer and intercalation complexes of clay minerals. In: Brindley, G.W., Brown, G., editors. Crystal structure of clay minerals and their X-ray identification. London: Mineralogical Society. p 197–248.CrossRefGoogle Scholar
Magaruran, E.D., Kieke, M.D., Reichert, W.W. and Chiavoni, A.. 1987. Effective vitilization of organoclay dispersants. NGLI Spokesman 50: 453–460.Google Scholar
Messersmith, P.B. and Giannelis, E.P.. 1994. Synthesis and characterization of layered silicate-epoxy nanocomposites. Chem Mater 6: 1719–1725.CrossRefGoogle Scholar
Vaia, R.V., Rachel, K.T. and Giannelis, E.P.. 1994. Interlayer structure and molecular environment of alkylammonium layered silicates. Chem Mater 6: 1017–1022.CrossRefGoogle Scholar
Walker, G.F.. 1967. Interactions of n-alkylammonium ions with mica-type layer lattices. Clay Miner 7: 129–143.CrossRefGoogle Scholar
Wang, M.S. and Pinnavaia, T.J.. 1994. Clay-polymer nanocomposites formed from acidic derivatives of montmorillonite and an epoxy resin. Chem Mater 6: 468–474.CrossRefGoogle Scholar
Yan, Y. and Bein, T.. 1993. Molecular recognition through intercalation chemistry: Immobilization of organoclays on piezoelectric devices. Chem Mater 5: 905–907.CrossRefGoogle Scholar