Infrared spectroscopy of organoclays synthesized with the surfactant octadecyltrimethylammonium bromide
Xi, Yunfei, Ding, Zhe, He, Hongping, & Frost, Ray L. (2005) Infrared spectroscopy of organoclays synthesized with the surfactant octadecyltrimethylammonium bromide. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 61(3), pp. 515-525.
Infrared spectroscopy using a smart endurance single bounce diamond ATR cell has been used to study the changes in the spectra of the surfactant octadecyltrimethylammonium bromide upon intercalation into a sodium montmorillonite. The wavenumbers of bands attributed to CH stretching and bending vibrations in general decrease as the concentration of the surfactant measured in terms of the cation exchange capacity (CEC) up to 1.0 CEC. After this point the bands increase approaching a value the same as that of the surfactant. Significant changes occur in the HCH deformation modes of the methyl groups of the surfactant. These changes are attributed to the methyl groups locking into the siloxane surface of the montmorillonite. Such a concept is supported by changes in the SiO stretching bands of the montmorillonite siloxane surface
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|Item Type:||Journal Article|
|Additional Information:||Co-author, Hongping He is affiliated with Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Wushan, Guangzhou 510640, China|
|Keywords:||infrared spectroscopy, octadecyltrimethylammonium bromide, montmorillonite, surfactant|
|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 2005 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher: This journal is available online.|
|Deposited On:||14 Mar 2005|
|Last Modified:||29 Feb 2012 23:14|
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