Arrangement models of alkylammonium cations in the interlayer of HDTMA+ pillared montmorillonites

Zhu, Jianxi, He, Hongping, Guo, Jiugao, Yang, Dan, & Xie, Xiande (2003) Arrangement models of alkylammonium cations in the interlayer of HDTMA+ pillared montmorillonites. Chinese Science Bulletin, 48(4), pp. 368-372.


The orientation of HDTMA+ in the interlayer of organic pillared montmorillonites prepared at different concentrations of HDTMA+ have been studied using X-ray powder diffraction (XRD) and theoretical calculation. A series of arrangement models of HDTMA+ in the interlayer of montmorillonite have been proposed as lateral-monolayer (LM), lateral-bilayer (LB), pseudotrilayer (PT), paraffin-type-monolayer (PM), paraffin-type-bilayer (PB). With the increase of the concentration of HDTMA+, the arrangement model of HDTMA+ in the interlayer of montmorillonites changes as lateral-monolayer→lateral-bilayer→paraffin-type monolayer→pseudotrilayer→paraffin-type-bilayer and the packing density of HDTMA+ in the interlayer increases gradually. In the intermediate stages, different models may coexist.

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120 citations in Scopus
113 citations in Web of Science®
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ID Code: 1517
Item Type: Journal Article
Refereed: Yes
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Keywords: organic pillared montmorillonite, arrangement model, XRD, HDTMA+, nanochemistry, organoclay, clay, based nanocomposites
ISSN: 1001-6538
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2003 World Scientific
Copyright Statement: Electronic version of an article published as Chinese Science Bulletin 48(4):pp. 368-372.
Deposited On: 11 Jul 2006 00:00
Last Modified: 10 Aug 2011 18:39

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