High surface area polyHIPEs with hierarchical pore system

被引：78

作者：

Schwab, Matthias Georg ^{[2
]}

Senkovska, Irena ^{[1
]}

Rose, Marcus ^{[1
]}

Klein, Nicole ^{[1
]}

Koch, Matthias ^{[3
]}

Pahnke, Joerg ^{[3
]}

Jonschker, Gerhard ^{[3
]}

Schmitz, Barbara ^{[4
]}

Hirscher, Michael ^{[4
]}

Kaskel, Stefan ^{[1
]}

机构：

[1] Tech Univ Dresden, Dept Inorgan Chem, D-01062 Dresden, Germany

[2] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[3] Merck KGaA, D-64293 Darmstadt, Germany

[4] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

来源：

SOFT MATTER | 2009年 / 5卷 / 05期

关键词：

SOLUBLE POROGENIC SOLVENTS; HYPERCROSSLINKED POLYSTYRENE; N-ALKANES; ADSORPTION; MORPHOLOGY; HYDROGEN; DIVINYLBENZENE; FOAMS; POLYMERS; CHLORIDE;

D O I：

10.1039/b815143a

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：

The synthesis of polyHIPEs with bimodal pore-size distribution and very high specific surface areas up to 1210 m(2) g(-1) is reported. Monolithic polyHIPE precursors were swollen, and subsequently the polymeric network was crosslinked in the expanded state by internal and external electrophiles under catalysis of a Lewis acid leading to hypercrosslinked polymers of the Davankov type. The materials have a high n-butane uptake (34 wt% at 298 K) and moderate hydrogen storage capacity (2.02 wt% at 19.5 bar and 77.4 K). According to water adsorption isotherms, the inner surface area of the systems is highly hydrophobic shifting the adsorption branch to relative humidities of 0.8. The hierarchical organization of the system with transport macropores and highly microporous walls leads to an enhanced n-butane adsorption.

引用

页码：1055 / 1059

页数：5

共 28 条

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