Esterification of the silanol groups in the mesoporous silica derived from kanemite

被引：73

作者：

Kimura, T

Kuroda, K

Sugahara, Y

Kuroda, K

机构：

[1] Waseda Univ, Dept Appl Chem, Shinjuku Ku, Tokyo 169, Japan

[2] Waseda Univ, Kagami Mem Lab Mat Sci & Technol, Shinjuku Ku, Tokyo 169, Japan

来源：

JOURNAL OF POROUS MATERIALS | 1998年 / 5卷 / 02期

关键词：

mesoporous silica; esterification; pore size; hydrophobicity; silanol group;

D O I：

10.1023/A:1009641304742

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Silanol groups in the mesoporous silica derived from a layered silicate, kanemite (NaHSi2O5. 3H(2)O), 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 I-butanol and l-octanol. With the increase in the alkyl chain lengths of the alcohols, the pore sizes of the esterified products decreased and the hydrophobicity increased.

引用

收藏

页码：127 / 132

页数：6

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