Synergy between Polyamine and Anionic Surfactant: A Bioinspired Approach for Ordered Mesoporous Silica

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• 作者：Shaoxin Deng ; Chengxiang Shi ; Xueyan Xu ; Hui Zhao ; Pingchuan Sun ; Tiehong Chen
• 刊名：Langmuir
• 出版年：2014
• 出版时间：March 11, 2014
• 年：2014
• 卷：30
• 期：9
• 页码：2329-2334
• 全文大小：415K
• 年卷期：v.30,no.9(March 11, 2014)
• ISSN：1520-5827

文摘

A novel bioinspired approach for ordered mesoporous silica was developed on the basis of the synergic coassembly between polyamine and an anionic surfactant as a template. With the help of cationic polyamine, anionic surfactant micelles could be utilized as a mesostructure template, whereas with the aid of the anionic surfactant micelles the cationic polyamine chains underwent aggregation to exert their ability to induce silica condensation. Mesoporous silicas with well-ordered mesostructure of Fd-3m symmetry and 3D hexagonal close-packed mesostructure (hcp) were fabricated. Because of the abundant types of anionic surfactants and polyamines, the synthesis approach can be regarded as a general method for anionic-surfactant-templated mesoporous silica, and new mesostructures and morphologies are expected.