QUT ePrints

Grafting of Swelling Clay Materials with 3- aminopropyltriethoxysilane

He, Hongping, Duchet, Jannick, Galy, Jocelyne, & Gerard, Jean-Francois (2005) Grafting of Swelling Clay Materials with 3- aminopropyltriethoxysilane. Journal of Colloid and Interface Science, 288(1), pp. 171-176.

View at publisher

Abstract

The grafting reaction between a trifunctional silylating agent and two kinds of 2:1 type layered silicates was studied using FTIR, XRD, TGA and 29Si CP/MAS NMR. XRD patterns clearly indicate the introduction of 3-aminopropyltriethoxysilane (γ-APS) into the clay interlayer. In the natural montmorillonite, γ-APS adopts a parallel-bilayer while it adopts a parallel-monolayer arrangement in the synthetic fluorohectorite. These different silane arrangements have a prominent effect on the mechanism of the condensation reaction within the clay gallery. In natural montmorillonite, the parallel-bilayer arrangement of γ-APS results in bidentate (T2) and tridendate (T3) molecular environment while the parallel-monolayer arrangement leads to monodentate (T1), as indicated by 29Si CP/MAS NMR spectra. This study demonstrates that the silylation reaction and the interlayer microstructure of the grafting products strongly depend on the original clay materials.

Impact and interest:

113 citations in Scopus
Search Google Scholar™
95 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

1,787 since deposited on 13 Oct 2005
280 in the past twelve months

Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 1515
Item Type: Journal Article
Keywords: 3, aminopropyltriethoxysilane, natural montmorillonite, synthetic fluorohectorite, grafting, X, ray diffraction, thermogravimetric analysis, 29Si CP/MAS NMR
DOI: 10.1016/j.jcis.2005.02.092
ISSN: 0021-9797
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 2004 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 13 Oct 2005
Last Modified: 09 Jun 2010 22:25

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page