Polyvinyl acetate/poly(amide-12-b-ethylene oxide) blend membranes for carbon dioxide separation

	Polyvinyl acetate/poly(amide-12-b-ethylene oxide) blend membranes for carbon dioxide separation
	Feng, Shichao; Ren, Jizhong; Li, Hui; Hua, Kaisheng; Li, Xinxue; Deng, Maicun
刊名	journal of energy chemistry
	2013-11-01
卷号	22 期号:6 页码:837-844
关键词	polyvinyl acetate poly(amide-12-b-ethylene oxide) blend membrane carbon dioxide separation
英文摘要	in this paper, blend membranes from polyvinyl acetate (pvac) and block copolymer poly(amide-12-b-ethylene oxide) (pebax1074) are prepared by solution casting and solvent evaporation method. although they are homogeneous on a macro-scale, the observations from dsc and sem indicate micro-phase separation for pvac/pebax1074 blend membranes. with the increase of pebax1074 content, gas permeabilities of co2, h-2, n-2 and ch4 all increase greatly. pvac/pebax1074 blend membranes with high pvac content are appropriate for co2/ch4 separation. the temperature dependence of gas permeability is divided into rubbery region and glassy region. the activation energies of permeation in rubbery region are smaller than those in glassy region, and they all decrease with increasing pebax1074 content. for n-2, h-2 and ch4, their gas permeation properties are mainly influenced by the dual-mode sorption and hydrostatic pressure effect. but for co2, its permeability increases with the increase of pressure due to co2-induced plasticization effect, which is more obvious for pvac/pebax1074 blend membranes with high pvac content.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; energy & fuels ; engineering, chemical
研究领域[WOS]	chemistry ; energy & fuels ; engineering
关键词[WOS]	segmented block-copolymers ; gas-transport properties ; poly(ether-block-amide) membrane ; poly(ethylene glycol) ; polymer membranes ; co2 separation ; natural-gas ; soft acids ; removal ; permeability
收录类别	SCI
语种	英语
WOS记录号	WOS:000328434900004
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/137768]
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
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Feng, Shichao,Ren, Jizhong,Li, Hui,et al. Polyvinyl acetate/poly(amide-12-b-ethylene oxide) blend membranes for carbon dioxide separation[J]. journal of energy chemistry,2013,22(6):837-844.
APA	Feng, Shichao,Ren, Jizhong,Li, Hui,Hua, Kaisheng,Li, Xinxue,&Deng, Maicun.(2013).Polyvinyl acetate/poly(amide-12-b-ethylene oxide) blend membranes for carbon dioxide separation.journal of energy chemistry,22(6),837-844.
MLA	Feng, Shichao,et al."Polyvinyl acetate/poly(amide-12-b-ethylene oxide) blend membranes for carbon dioxide separation".journal of energy chemistry 22.6(2013):837-844.