journal article·2004-10

Interlamellar silylation of H-kenyaite with 3-aminopropyltriethoxysilane

Kyeong-Won Park, Soon-Yong Jeong, Oh-Yun Kwon

Applied Clay Science· Volume 27· Issue 1-2
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Abstract

H-kenyaite was modified by interlayer surface silylation using 3-aminopropyltriethoxysilane and dodecylamine in ethanol without a pre-swelling step. Dodecylamine acts as a gallery expander and silylation catalyst. The evaporation of ethanol from the dispersion yields well-ordered silylated kenyaites with large basal spacings between 4.12 and 5.12 nm. Solid-state 29Si MAS NMR of the silylated samples showed Q3 and Q4 signals as well as T2 and T3 signals. The increase in the relative intensity of Q4 for Q3 and the appearance of T2 and T3 signals was attributed to the grafting of 3-aminopropyltriethoxysilane to the interlayer surface silanol groups.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Mesoporous Materials and Catalysis · Clay minerals and soil interactions · Paleontology and Stratigraphy of Fossils

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (14)

Show source-provided references
1. Kenyaite—synthesis and properties
2. Structural characterization of (3-aminopropyl)trimethoxysilane-modified slicas by silicon-29 and carbon-13 nuclear magnetic resonance10.1021/ac00168a027 ↗
3. Interlamellar liquid sorption on hydrophobic silicates10.1002/bbpc.19850890112 ↗
4. Interactions of hydrophobic layer silicates with alcohol–benzene mixtures: I. Adsorption isortherm10.1002/bbpc.19860900507 ↗
5. Interactions of hydrophobic layer silicates with alcohol–benzene mixtures: II. Structure and composition of the adsorption layer10.1002/bbpc.19860900508 ↗
6. Silylation of micro-, meso- and non-porous oxides, a review10.1016/S1387-1811(98)00239-X ↗
7. Hydrothermal synthesis of Na-magadite and Na-kenyaite in the presence of carbonate
8. Control of interlayer microstructures of a layered silicate by surface modification with organochlorosilanes10.1021/ja981055s ↗
9. Preparation and characterization of silylated-magadiites10.1016/S0169-1317(99)00010-1 ↗
10. Intracrystalline grafting on layer silisic acid10.1038/287028a0 ↗
11. Mechanism of the grafting of organosilanes on mineral surfaces
12. Synthesis of silylated derivatives of a layered polysilicate kenemite with mono-, di-, and trichloro(alkyl)silanes10.1021/cm010103w ↗
13. Silylation of a crystalline silicic acid: an MAS NMR and porosity study10.1039/b204314a ↗
14. Organic derivatives of layered polysilicates: I. Trimethylsilylation of magadiite and kenyaite10.1016/0168-7336(88)80085-8 ↗