Chitosan/polyvinylpyrrolidone-silica hybrid membranes for pervaporation separation of methanol/ethylene glycol azeotrope

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	Chitosan/polyvinylpyrrolidone-silica hybrid membranes for pervaporation separation of methanol/ethylene glycol azeotrope
	Zhang, Qiu Gen ; Hu, Wen Wei ; Liu, Qing Lin ; Zhu, Ai Mei ; Zhang QG(张秋根) ; Liu QL(刘庆林) ; Zhu AM(朱爱梅)
刊名	http://dx.doi.org/10.1002/app.39058
	2013
关键词	BLEND MEMBRANES ETHYLENE-GLYCOL CHITOSAN MEMBRANES COMPOSITE MEMBRANES COMPLEX MEMBRANES DEHYDRATION MIXTURES ETHANOL PERFORMANCE
英文摘要	National Nature Science Foundation of China [20976145, 21076170]; Nature Science Foundation of Fujian Province of China [2009J01040]; the research fund for the Doctoral Program of Higher Education [20090121110031]; Fundamental Research Funds for the Central Universities [2012121029]; Chitosan (CS)/polyvinylpyrrolidone (PVP)-silica hybrid membranes are prepared to separate the methanol/ethylene glycol (EG) azeotrope. These hybrid membranes are formed in semi-interpenetrating network structure at the molecular scale via sol-gel reactions between CS and tetraethoxysilane (TEOS). The physico-chemical property and morphology of the as-prepared membranes are investigated in detail. They have lower crystallinity, higher thermal stability, and denser structure than the pristine CS membrane and its blending counterpart. The as-prepared hybrid membranes demonstrate excellent performances and a great potential in pervaporation separation of methanol/EG. Silica-hybridization depressed the swelling degree of membranes in the azeotrope, and remarkably enhanced methanol sorption selectivity. The membrane containing 7.77 wt % PVP and 14.52 wt % TEOS has a permeation flux of 0.119 kg m-2 h-1 and separation factor of 1899. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
语种	英语
出版者	WILEY-BLACKWELL
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88908]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhang, Qiu Gen,Hu, Wen Wei,Liu, Qing Lin,et al. Chitosan/polyvinylpyrrolidone-silica hybrid membranes for pervaporation separation of methanol/ethylene glycol azeotrope[J]. http://dx.doi.org/10.1002/app.39058,2013.
APA	Zhang, Qiu Gen.,Hu, Wen Wei.,Liu, Qing Lin.,Zhu, Ai Mei.,张秋根.,...&朱爱梅.(2013).Chitosan/polyvinylpyrrolidone-silica hybrid membranes for pervaporation separation of methanol/ethylene glycol azeotrope.http://dx.doi.org/10.1002/app.39058.
MLA	Zhang, Qiu Gen,et al."Chitosan/polyvinylpyrrolidone-silica hybrid membranes for pervaporation separation of methanol/ethylene glycol azeotrope".http://dx.doi.org/10.1002/app.39058 (2013).