Blend membranes of poly(amide-6-b-ethylene oxide)/[Emim][PF6] for CO2 separation

doi:10.1016/j.seppur.2017.02.003

	Blend membranes of poly(amide-6-b-ethylene oxide)/[Emim][PF6] for CO2 separation
	Hua, Kaisheng 1; Deng, Maicun 1; Qiu, Yongtao 1,2; Ren, Jizhong 1; Zhao, Dan 1; Li, Hui 1; Li, Xinxue 1
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2017-05-31
卷号	179 页码:309-319
关键词	Poly(Amide-6-b-ethylene Oxide) [Emim][Pf6] Carbon Dioxide Separation Blend Membrane
ISSN号	1383-5866
DOI	10.1016/j.seppur.2017.02.003
文献子类	Article
英文摘要	1-Ethyl-3-methylimidazolium hexafluorophosphate ([Emim][PF6]) was incorporated into poly(amide-6-b-ethylene oxide) (Pebax1657) to prepare blend membranes. The physical properties of Pebax1657/[Emim][PF6] blend membranes were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). For Pebax1657/[Emim] [PF6] blend membranes, the melting peak of polyether (PE) segment disappeared when [Emim][PF6] content reached 10 wt%, and the melting peak of [Emim][PF6] appeared until [Emim][PF6] content came up to 60 wt%, indicating the homogeneous mixing of [Emim][PF6] and Pebax1657 for the prepared Pebax1657/ [Emim][PF6] blend membranes. According to FTIR, some interactions were formed between [Emim][PF6] and PE segment. The gas transport properties of CO2, N-2, CH4 and H-2 for Pebax1657/[Emim][PF6] blend membranes were also investigated. The incorporation of [Emim][PF6] increased the gas solubility coefficients of CO2, N-2, CH4 and H-2, however the gas diffusion coefficients decreased, which led to the decrease of the permeabilities of CO2, N-2, CH4 and H-2. Meanwhile, the selectivity of CO2/CH4 increased slightly. With the increase of temperature (35-85 degrees C), the solubility coefficient of CO2 decreased, while the diffusion coefficients of CO2, N-2, CH4 and H-2 increased, resulting into the increase of the permeabilities of CO2, N-2, CH4 and H-2. Moreover, no sharp increase of gas permeability was observed at the melting point of [Emim][PF6] (60 degrees C). And the activation energies of permeation of CO2, N-2, CH4 and H-2 increased with increasing [Emim][PF6] content. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	TEMPERATURE IONIC LIQUIDS ; CARBON-DIOXIDE SEPARATION ; MIXED-MATRIX MEMBRANES ; GAS-TRANSPORT PROPERTIES ; GEL MEMBRANES ; HYDROCARBON SOLUBILITIES ; CO2/H-2 SEPARATION ; SURFACE-TENSION ; CAPTURE ; PERMEATION
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000397688200034
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169420]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Ren, Jizhong
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hua, Kaisheng,Deng, Maicun,Qiu, Yongtao,et al. Blend membranes of poly(amide-6-b-ethylene oxide)/[Emim][PF6] for CO2 separation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,179:309-319.
APA	Hua, Kaisheng.,Deng, Maicun.,Qiu, Yongtao.,Ren, Jizhong.,Zhao, Dan.,...&Li, Xinxue.(2017).Blend membranes of poly(amide-6-b-ethylene oxide)/[Emim][PF6] for CO2 separation.SEPARATION AND PURIFICATION TECHNOLOGY,179,309-319.
MLA	Hua, Kaisheng,et al."Blend membranes of poly(amide-6-b-ethylene oxide)/[Emim][PF6] for CO2 separation".SEPARATION AND PURIFICATION TECHNOLOGY 179(2017):309-319.