Esterification of the Silanol Groups in the Mesoporous Silica Derived from Kanemite

Tatsuo Kimura; Kazuo Kuroda; Yoshiyuki Sugahara; Kazuyuki Kuroda

doi:10.1023/A:1009641304742

Esterification of the Silanol Groups in the Mesoporous Silica Derived from Kanemite

Tatsuo Kimura, Kazuo Kuroda, Yoshiyuki Sugahara, Kazuyuki Kuroda

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

Silanol groups in the mesoporous silica derived from a layered silicate, kanemite (NaHSi₂O₅ · 3H₂O), were esterified with alcohols (C_nH_2n+1OH; n = 2, 4, and 8). Most of the silanol groups in the mesopores were modified with ethanol though some silanol groups remained after the reactions with 1-dutanol and 1-octanol. With the increase in the alkyl chain lengths of the alcohols, the pore sizes of the esterified products decreased and the hydrophobicity increased.

Original language	English
Pages (from-to)	127-132
Number of pages	6
Journal	Journal of Porous Materials
Volume	5
Issue number	2
DOIs	https://doi.org/10.1023/A:1009641304742
Publication status	Published - 1998

Keywords

Esterification
Hydrophobicity
Mesoporous silica
Pore size
Silanol group

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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title = "Esterification of the Silanol Groups in the Mesoporous Silica Derived from Kanemite",

abstract = "Silanol groups in the mesoporous silica derived from a layered silicate, kanemite (NaHSi2O5 · 3H2O), were esterified with alcohols (CnH2n+1OH; n = 2, 4, and 8). Most of the silanol groups in the mesopores were modified with ethanol though some silanol groups remained after the reactions with 1-dutanol and 1-octanol. With the increase in the alkyl chain lengths of the alcohols, the pore sizes of the esterified products decreased and the hydrophobicity increased.",

keywords = "Esterification, Hydrophobicity, Mesoporous silica, Pore size, Silanol group",

author = "Tatsuo Kimura and Kazuo Kuroda and Yoshiyuki Sugahara and Kazuyuki Kuroda",

note = "Funding Information: K.K. acknowledges the financial assistance from Grant-in-Aid for the Special Priority Area by the Ministry of Education, Science, and Culture of the Japanese Government. The authors acknowledge Mr. H. Hata (Dept. of Appl. Chem., Waseda Univ.) for his nitrogen and water adsorption measurements. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "1998",

doi = "10.1023/A:1009641304742",

language = "English",

volume = "5",

pages = "127--132",

journal = "Journal of Porous Materials",

issn = "1380-2224",

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T1 - Esterification of the Silanol Groups in the Mesoporous Silica Derived from Kanemite

AU - Kimura, Tatsuo

AU - Kuroda, Kazuo

AU - Sugahara, Yoshiyuki

AU - Kuroda, Kazuyuki

N1 - Funding Information: K.K. acknowledges the financial assistance from Grant-in-Aid for the Special Priority Area by the Ministry of Education, Science, and Culture of the Japanese Government. The authors acknowledge Mr. H. Hata (Dept. of Appl. Chem., Waseda Univ.) for his nitrogen and water adsorption measurements. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 1998

Y1 - 1998

N2 - Silanol groups in the mesoporous silica derived from a layered silicate, kanemite (NaHSi2O5 · 3H2O), were esterified with alcohols (CnH2n+1OH; n = 2, 4, and 8). Most of the silanol groups in the mesopores were modified with ethanol though some silanol groups remained after the reactions with 1-dutanol and 1-octanol. With the increase in the alkyl chain lengths of the alcohols, the pore sizes of the esterified products decreased and the hydrophobicity increased.

AB - Silanol groups in the mesoporous silica derived from a layered silicate, kanemite (NaHSi2O5 · 3H2O), were esterified with alcohols (CnH2n+1OH; n = 2, 4, and 8). Most of the silanol groups in the mesopores were modified with ethanol though some silanol groups remained after the reactions with 1-dutanol and 1-octanol. With the increase in the alkyl chain lengths of the alcohols, the pore sizes of the esterified products decreased and the hydrophobicity increased.

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KW - Pore size

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