Porous Siloxane-Organic Hybrid with Ultrahigh Surface Area through Simultaneous Polymerization-Destruction of Functionalized Cubic Siloxane Cages

被引：111

作者：

Chaikittisilp, Watcharop ^{[1
]}

Kubo, Masaru ^{[1
]}

Moteki, Takahiko ^{[1
]}

Sugawara-Narutaki, Ayae ^{[1
]}

Shimojima, Atsushi ^{[1
]}

Okubo, Tatsuya ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 35期

基金：

日本学术振兴会;

关键词：

HYDROGEN STORAGE; BUILDING-BLOCKS; SOL-GEL; POLYMERS; NETWORKS; OCTAVINYLSILSESQUIOXANE; DERIVATIVES; SEPARATION;

D O I：

10.1021/ja2046556

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel hierarchically porous, hyper-cross-linked siloxane organic hybrid (PSN-5) has been synthesized by Friedel-Crafts self-condensation of benzyl chloride-terminated double-four-ring cubic siloxane cages as a singular molecular precursor. Simultaneous polymerization of the organic functional groups and destruction of the siloxane cages during synthesis yielded PSN-5, which has an ultrahigh BET surface area (similar to 2500 m(2) g(-1)) and large pore volume (similar to 3.3 cm(3) g(-1)) that to our knowledge are the highest values reported for siloxane-based materials. PSN-5 also shows a high H-2 uptake of 1.25 wt % at 77 K and 760 Torr.

引用

页码：13832 / 13835

页数：4

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