Improving CO2 selectivity in polymerized room-temperature ionic liquid gas separation membranes through incorporation of polar substituents

被引：214

作者：

Bara, Jason E. ^{[1
,2
]}

Gabriel, Christopher J. ^{[2
]}

Hatakeyama, Evan S. ^{[1
]}

Carlisle, Trevor K. ^{[1
]}

Lessmann, Sonja ^{[2
]}

Noble, Richard D. ^{[1
]}

Gin, Douglas L. ^{[1
,2
]}

机构：

[1] Univ Colorado, Dept Chem & Biol Engn, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

JOURNAL OF MEMBRANE SCIENCE | 2008年 / 321卷 / 01期

关键词：

CO2; room-temperature ionic liquid; membrane; polymer; synthesis;

D O I：

10.1016/j.memsci.2007.12.033

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Solid, polymer membranes fabricated from room-temperature ionic liquid monomers containing oligo(ethylene glycol) or nitrile-terminated alkyl substituents tethered to imidazolium cations were found to exhibit ideal CO2/N-2 and CO2/CH4 separation factors significantly greater than those with comparable length n-alkyl substituents, with similar CO2 permeability. Polymers containing these functional groups exhibited CO2/N-2 gas separation performance exceeding the "upper bound" of a "Robeson Plot". (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：3 / 7

页数：5

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