期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 47, 期 24, 页码 9919-9924出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie801019x
关键词
-
Composite gas separation membranes were fabricated by photopolymerization of a room-temperature ionic liquid (RTIL) monomer in the presence of 20 mol % of nonpolymerizable RTILs with various anions. The solid, composite membranes contained polymer-bound cations, free cations, and free anions. The composite materials exhibit no phase separation between these components. The permeabilities of CO2, N-2, and CH4 in these poly(RTIL)-RTIL composites were observed to increase by 2-5 times relative to those in the neat poly(RTIL) without a free RTIL component. These largely increased permeabilities resulted in CO2/N-2 and CO2/CH4 ideal separation selectivities that were only slightly diminished relative to the poly(RTIL) without a free RTIL. When viewed on Robeson plots, poly(RTIL)-RTIL composites are shown to be more favorable for CO2/N-2 separation than CO2/CH4. Poly(RTIL)-RTIL composites are highly tunable materials with excellent promise as gas separation membranes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据