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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|Item Type:||Journal Article|
|Keywords:||organic pillared montmorillonite, arrangement model, XRD, HDTMA+, nanochemistry, organoclay, clay, based nanocomposites|
|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|
|Last Modified:||11 Aug 2011 04:39|
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