Control the handedness of the mesoporous silica nanoribbons and the pore channels using anionic gelators

被引：3

作者：

Li, Rui ^{[1
]}

Wang, Hairui ^{[1
]}

Zhao, Yanwei ^{[1
]}

Huang, Zhibin ^{[1
]}

Li, Yi ^{[1
]}

Li, Tiaozong ^{[1
]}

Yang, Yonggang ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Dept Polymer Sci & Engn, Jiangsu Key Lab Adv Funct Polymer Design & Applic, Suzhou 215123, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 98卷

基金：

中国国家自然科学基金;

关键词：

Sol-gel preparation; Nanoribbons; Porous materials; Helicity; ACHIRAL CATIONIC SURFACTANT; TEMPLATES; MESOSTRUCTURES; NANOSTRUCTURES; MOLECULES;

D O I：

10.1016/j.matlet.2013.01.131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single-handed helical mesoporous silicas with chiral pore channels attracted much attention, due to their potential applications for enantioseparation and asymmetric catalysis. Although they can be prepared using the self-assemblies of chiral cationic gelators as the templates, they are hard to be prepared using those of anionic gelators as templates. Herein, a pair of chiral anionic enantiomers derived from trans-1,2-diamiocyclohexanes were synthesized. The field-emission scanning electron microscopy (FE-SEM) images indicated that the enantiomers could self-assemble into helical nanoribbons in pure water. The handedness of the mesoporous silicas were controlled using these enantiomers and 3-aminopropyltrimethoxysilane as a co-structure directing agent through a sol-gel transcription approach. The FE-SEM and transmission electron microscopy images indicated that the obtained silicas were helical mesoporous nanoribbons with chiral pore channels. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：8 / 11

页数：4

共 19 条

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