Triblock-copolymer-directed syntheses of large-pore mesoporous silica fibers

被引：283

作者：

Yang, PD

Zhao, DY

Chmelka, BF

Stucky, GD ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem, Mat Res Lab, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA

来源：

CHEMISTRY OF MATERIALS | 1998年 / 10卷 / 08期

关键词：

D O I：

10.1021/cm980201q

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：

Mesoporous silica fibers with accessible, highly ordered large periodic pores are directly drawn from a highly viscous surfactant/silicate solution. Poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) triblock copolymers are used as the structure-directing agents under acidic conditions during the syntheses. These fibers have uniform exterior diameters of submicron to several hundred micron and no apparent limit on aspect ratios. They are made up of either supercage arrays or 2-dimensional channel arrays with pore sizes as large as 63 Angstrom.

引用

页码：2033 / +

页数：5

共 26 条

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[Anonymous], NATURE

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