29Si NMR spectroscopy investigation of alcoholic phenyltrimethyl ammonium silicate solutions

被引：1
|
作者：
Samadi-Maybodi, Abdolraouf [1 ]
Ehsani, Salma [1 ]
Bijanzadeh, Hamid-Reza [2 ]
机构：
[1] Univ Mazandaran, Fac Basic Sci, Dept Chem, Babol Sar, Iran
[2] Tarbiat Modares Univ, Dept Chem, Tehran, Iran
来源：
JOURNAL OF SOLUTION CHEMISTRY | 2008年 / 37卷 / 03期
关键词：
silicon-29; NMR; alcoholic silicate solution; phenyltrimethylammonium hydroxide; esterification;
D O I：
10.1007/s10953-007-9240-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Si-29 NMR spectroscopy is a powerful tool for studies of the silicate species existing in both aqueous and non-aqueous solutions. In this report Si-29 NMR spectroscopy was used to characterize species present in alkaline alcoholic silicate solutions. Phenyltrimethylammonium (PTMA) hydroxide was used as a base. The effects of polymerization/depolymerization of silicate anions in alcoholic alkaline solutions were investigated with different alcohols by Si-29 NMR spectroscopy. The esterification of monomeric silicate, Si(OH)(4), in the presence of different alcohols was also studied. Esterification depends on the alkyl chain as well as number of hydroxyl groups in the alcohol.
引用
收藏
页码：413 / 419
页数：7
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