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Edge-Modification of Laponite with Dimethyl-octylmethoxysilane

By Ray L. Frost, Lisa M. Daniel and Huai Yong Zhu


This study examines the edge modification of laponite, with a monoalkoxy silane, dimethyloctyl methoxysilane. The influence of ultrasonics, aging time and silane concentration on the resultant materials is examined. The silylated clays are characterized by XRD, IES, TGA, and Si-NMR. The amount of grafted silane was increased by increasing the ratio of silane to clay, sonication of the reaction mixture and ageing the reaction mixture for no more than 24 hours to avoid removal of grafted silane due to equilibrium effects

Topics: 030600 PHYSICAL CHEMISTRY (INCL. STRUCTURAL), 030601 Catalysis and Mechanisms of Reactions, 030603 Colloid and Surface Chemistry, laponite, silane, silylation, edge, modification, IES
Publisher: Elsevier
Year: 2008
DOI identifier: 10.1016/j.jcis.2008.01.032
OAI identifier:

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