Synthesis and characterization of bridged amine-functionalized mesoporous organosilica materials

被引:0
作者
Zhang Qinghe [1 ]
Lian Dong [1 ]
Li Xiuqing [1 ]
Tao Hong [1 ]
机构
[1] Natl Inst Metrol, Beijing 100013, Peoples R China
来源
ADVANCES IN MATERIALS AND MATERIALS PROCESSING, PTS 1-3 | 2013年 / 652-654卷
关键词
Periodic mesoporous organosilicas; Bis(3-(methylamino)propyl)-trimethoxysilane; Stationary phase; CO-CONDENSATION; CHEMICAL-REACTIVITY; MORPHOLOGY CONTROL; BENZENE-SILICA; ORGANIC GROUPS; COPOLYMER; PMOS; POLYSILSESQUIOXANES; ETHANESILICA; ADSORPTION;
D O I
10.4028/www.scientific.net/AMR.652-654.799
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The periodic bridged amine-functionalized mesoporous organosilica (BAFMOs) was synthesized by condensation of bridged silicon precursor 1,2-Bis(triethoxysilyl)-ethane (BTESE) and Bis(3-(methylamino)propyl)-trimethoxysilane (BTMSPMA) under acidic conditions with the aid of NaCl and ethanol. A triblock copolymer P123 was used as template. X-ray diffraction and transmission electron microscopy revealed that the resultant BAFMOs materials possess ordered mesoporous. N-2 sorption showed that the specific surface area gradual decreased, from 970m(2)/g to 795m(2)/g, whereas the average pore size increased, from 3.7 nm to 5.4 nm as the amount of BTMSPMA increased. C-13 CP MAS NMR and Si-29 MAS NMR confirmed the retaining of the Si-C as well as the existing of the amino in the silica skeleton. The analytical potential of the materials is demonstrated with separation of isomeric molecules in reverse phase chromatography mode compared with commercial C18 column.
引用
收藏
页码:799 / 814
页数:16
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