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Lamellar Hexadecyltrimethylammonium Silicates Derived from Kanemite

Lamellar organoammonium silicates with variable silicon environments have been synthesized by the reaction of a layered polysilicate kanemite with aqueous solutions of hexadecyltrimethylammonium (C16TMA) chloride. While the structure of kanemite is composed of only Q3 silicate species ((SiO)3 SiO),...

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Published in:Langmuir 2000-10, Vol.16 (20), p.7624-7628
Main Authors: Kimura, Tatsuo, Itoh, Daigo, Okazaki, Nanae, Kaneda, Mizue, Sakamoto, Yasuhiro, Terasaki, Osamu, Sugahara, Yoshiyuki, Kuroda, Kazuyuki
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cited_by cdi_FETCH-LOGICAL-a295t-601efb2c0919981514e2022739370fe72732addec78955ac8f6f48fe6870da663
cites cdi_FETCH-LOGICAL-a295t-601efb2c0919981514e2022739370fe72732addec78955ac8f6f48fe6870da663
container_end_page 7628
container_issue 20
container_start_page 7624
container_title Langmuir
container_volume 16
creator Kimura, Tatsuo
Itoh, Daigo
Okazaki, Nanae
Kaneda, Mizue
Sakamoto, Yasuhiro
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Sugahara, Yoshiyuki
Kuroda, Kazuyuki
description Lamellar organoammonium silicates with variable silicon environments have been synthesized by the reaction of a layered polysilicate kanemite with aqueous solutions of hexadecyltrimethylammonium (C16TMA) chloride. While the structure of kanemite is composed of only Q3 silicate species ((SiO)3 SiO), SiO4 units with both Q3 and Q4 ((SiO)4 Si ) environments were present in the silicate frameworks of the lamellar C16TMA silicates. The Q4 species mainly formed by intralayer condensation of the Q3 species in the individual silicate sheets in kanemite rather than by interlayer condensation between the adjacent sheets. The intralayer condensation can be suppressed by lowering the reaction temperature and/or shortening the reaction time, which results in the relative retention of the silicate framework of kanemite in the lamellar C16TMA silicates.
doi_str_mv 10.1021/la000325t
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title Lamellar Hexadecyltrimethylammonium Silicates Derived from Kanemite
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