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Interlamellar silylation of magadiite by octyl triethoxysilane in the presence of dodecylamine

Park, Kyeong-Won / Jung, Jong Hwa / Kim, Sung-Kyu / Kwon, Oh-Yun

AbstractMagadiite was modified by interlamellar silylation with octyl triethoxysilane (OTES) in the presence of dodecylamine (DDA) in ethanol without a pre-swelling step. Dodecylamine expanded the interlayer space and acted as silylation catalyst. The well ordered silylated magadiite had basal spacings between 1.18 and 1.38nm. Solid-state ²⁹Si MAS NMR 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 were attributed to the grafting of OTES to the interlayer surface silanol groups. The described method provides a promising route for the preparation of functional nanomaterials.

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Interlamellar silylation of magadiite by octyl triethoxysilane in the presence of dodecylamine

Park, Kyeong-Won / Jung, Jong Hwa / Kim, Sung-Kyu / Kwon, Oh-Yun

AbstractMagadiite was modified by interlamellar silylation with octyl triethoxysilane (OTES) in the presence of dodecylamine (DDA) in ethanol without a pre-swelling step. Dodecylamine expanded the interlayer space and acted as silylation catalyst. The well ordered silylated magadiite had basal spacings between 1.18 and 1.38nm. Solid-state ²⁹Si MAS NMR 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 were attributed to the grafting of OTES to the interlayer surface silanol groups. The described method provides a promising route for the preparation of functional nanomaterials.

Interlamellar silylation of magadiite by octyl triethoxysilane in the presence of dodecylamine

Park, Kyeong-Won / Jung, Jong Hwa / Kim, Sung-Kyu / Kwon, Oh-Yun

AbstractMagadiite was modified by interlamellar silylation with octyl triethoxysilane (OTES) in the presence of dodecylamine (DDA) in ethanol without a pre-swelling step. Dodecylamine expanded the interlayer space and acted as silylation catalyst. The well ordered silylated magadiite had basal spacings between 1.18 and 1.38nm. Solid-state ²⁹Si MAS NMR 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 were attributed to the grafting of OTES to the interlayer surface silanol groups. The described method provides a promising route for the preparation of functional nanomaterials.

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Title:

Interlamellar silylation of magadiite by octyl triethoxysilane in the presence of dodecylamine

Contributors:

Park, Kyeong-Won (author) / Jung, Jong Hwa (author) / Kim, Sung-Kyu (author) / Kwon, Oh-Yun (author)

Published in:

Applied Clay Science ; 46 ; 251-254

Publication date:

2009-08-18

Size:

4 pages

ISSN:

DOI:

https://doi.org/10.1016/j.clay.2009.08.012

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Layered silicate , Hydrothermal , Silylation , Intercalation , Magadiite , octyl triethoxysilane

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